1235136064 has 28 divisors (see below), whose sum is σ = 2557540224. Its totient is φ = 590716544.

The previous prime is 1235136053. The next prime is 1235136079. The reversal of 1235136064 is 4606315321.

It is a super-2 number, since 2×1235136064² = 3051122193186824192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418072 + ... + 421015.

Almost surely, 2^1235136064 is an apocalyptic number.

It is an amenable number.

1235136064 is an abundant number, since it is smaller than the sum of its proper divisors (1322404160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1235136064 is an equidigital number, since it uses as much as digits as its factorization.

1235136064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839122 (or 839112 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1235136064 is about 35144.5026142070. The cubic root of 1235136064 is about 1072.9305241921.

The spelling of 1235136064 in words is "one billion, two hundred thirty-five million, one hundred thirty-six thousand, sixty-four".