915648001 has 6 divisors (see below), whose sum is σ = 948311702. Its totient is φ = 884073120.

The previous prime is 915647989. The next prime is 915648007. The reversal of 915648001 is 100846519.

It can be written as a sum of positive squares in 3 ways, for example, as 27667600 + 887980401 = 5260^2 + 29799^2 .

It is not a de Polignac number, because 915648001 - 2⁵ = 915647969 is a prime.

It is a super-2 number, since 2×915648001² = 1676822523470592002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (915648007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 543540 + ... + 545221.

Almost surely, 2^915648001 is an apocalyptic number.

It is an amenable number.

915648001 is a deficient number, since it is larger than the sum of its proper divisors (32663701).

915648001 is a wasteful number, since it uses less digits than its factorization.

915648001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088819 (or 1088790 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 915648001 is about 30259.6761549095. The cubic root of 915648001 is about 971.0528126782.

The spelling of 915648001 in words is "nine hundred fifteen million, six hundred forty-eight thousand, one".