1156465001 has 24 divisors (see below), whose sum is σ = 1349522880. Its totient is φ = 986211072.

The previous prime is 1156464989. The next prime is 1156465027. The reversal of 1156465001 is 1005646511.

It is not a de Polignac number, because 1156465001 - 2⁶ = 1156464937 is a prime.

It is a super-2 number, since 2×1156465001² = 2674822597075860002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156465501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121715 + ... + 130871.

It is an arithmetic number, because the mean of its divisors is an integer number (56230120).

Almost surely, 2^1156465001 is an apocalyptic number.

It is an amenable number.

1156465001 is a deficient number, since it is larger than the sum of its proper divisors (193057879).

1156465001 is a wasteful number, since it uses less digits than its factorization.

1156465001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9233 (or 9216 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 1156465001 is about 34006.8375624668. The cubic root of 1156465001 is about 1049.6491650264.

The spelling of 1156465001 in words is "one billion, one hundred fifty-six million, four hundred sixty-five thousand, one".