1342172205 has 24 divisors (see below), whose sum is σ = 2537926560. Its totient is φ = 650749920.

The previous prime is 1342172189. The next prime is 1342172213. The reversal of 1342172205 is 5022712431.

1342172205 is a `hidden beast` number, since 13 + 421 + 7 + 220 + 5 = 666.

It is not a de Polignac number, because 1342172205 - 2⁴ = 1342172189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1355235 + ... + 1356224.

It is an arithmetic number, because the mean of its divisors is an integer number (105746940).

Almost surely, 2^1342172205 is an apocalyptic number.

1342172205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1342172205 is a deficient number, since it is larger than the sum of its proper divisors (1195754355).

1342172205 is a wasteful number, since it uses less digits than its factorization.

1342172205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711481 (or 2711478 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1342172205 is about 36635.6684803212. The cubic root of 1342172205 is about 1103.0691709956.

Adding to 1342172205 its reverse (5022712431), we get a palindrome (6364884636).

The spelling of 1342172205 in words is "one billion, three hundred forty-two million, one hundred seventy-two thousand, two hundred five".