1235122345 has 16 divisors (see below), whose sum is σ = 1527079248. Its totient is φ = 958314240.

The previous prime is 1235122313. The next prime is 1235122363. The reversal of 1235122345 is 5432215321.

It can be written as a sum of positive squares in 8 ways, for example, as 66781584 + 1168340761 = 8172^2 + 34181^2 .

It is not a de Polignac number, because 1235122345 - 2⁵ = 1235122313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48115 + ... + 69175.

It is an arithmetic number, because the mean of its divisors is an integer number (95442453).

Almost surely, 2^1235122345 is an apocalyptic number.

It is an amenable number.

1235122345 is a deficient number, since it is larger than the sum of its proper divisors (291956903).

1235122345 is a wasteful number, since it uses less digits than its factorization.

1235122345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21420.

The product of its digits is 7200, while the sum is 28.

The square root of 1235122345 is about 35144.3074337794. The cubic root of 1235122345 is about 1072.9265517314.

Adding to 1235122345 its reverse (5432215321), we get a palindrome (6667337666).

The spelling of 1235122345 in words is "one billion, two hundred thirty-five million, one hundred twenty-two thousand, three hundred forty-five".