1342123225 has 27 divisors (see below), whose sum is σ = 1771998781. Its totient is φ = 1008195200.

The previous prime is 1342123217. The next prime is 1342123229. The reversal of 1342123225 is 5223212431.

The square root of 1342123225 is 36635.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 31393609 + 1310729616 = 5603^2 + 36204^2 .

It is not a de Polignac number, because 1342123225 - 2³ = 1342123217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1342123225.

It is not an unprimeable number, because it can be changed into a prime (1342123229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3113760 + ... + 3114190.

Almost surely, 2^1342123225 is an apocalyptic number.

1342123225 is the 36635-th square number.

1342123225 is the 18318-th centered octagonal number.

It is an amenable number.

1342123225 is a deficient number, since it is larger than the sum of its proper divisors (429875556).

1342123225 is an frugal number, since it uses more digits than its factorization.

1342123225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 453 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The cubic root of 1342123225 is about 1103.0557527012.

Multiplying 1342123225 by its sum of digits (25), we get a square (33553080625 = 183175²).

1342123225 divided by its sum of digits (25) gives a square (53684929 = 7327²).

Adding to 1342123225 its reverse (5223212431), we get a palindrome (6565335656).

The spelling of 1342123225 in words is "one billion, three hundred forty-two million, one hundred twenty-three thousand, two hundred twenty-five".