1235705252 has 12 divisors (see below), whose sum is σ = 2163744156. Its totient is φ = 617492640.

The previous prime is 1235705249. The next prime is 1235705257. The reversal of 1235705252 is 2525075321.

It can be written as a sum of positive squares in 2 ways, for example, as 479785216 + 755920036 = 21904^2 + 27494^2 .

It is not an unprimeable number, because it can be changed into a prime (1235705257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82199 + ... + 96062.

It is an arithmetic number, because the mean of its divisors is an integer number (180312013).

Almost surely, 2^1235705252 is an apocalyptic number.

It is an amenable number.

1235705252 is a deficient number, since it is larger than the sum of its proper divisors (928038904).

1235705252 is a wasteful number, since it uses less digits than its factorization.

1235705252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179998 (or 179996 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 1235705252 is about 35152.5995055842. The cubic root of 1235705252 is about 1073.0953118111.

The spelling of 1235705252 in words is "one billion, two hundred thirty-five million, seven hundred five thousand, two hundred fifty-two".