1078165172 has 12 divisors (see below), whose sum is σ = 2156330400. Its totient is φ = 462070776.

The previous prime is 1078165147. The next prime is 1078165183. The reversal of 1078165172 is 2715618701.

It is a happy number.

1078165172 is an admirable number.

It is a super-2 number, since 2×1078165172² = 2324880276227579168, which contains 22 as substring.

It is a congruent number.

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, 19252922 + ... + 19252977.

It is an arithmetic number, because the mean of its divisors is an integer number (179694200).

Almost surely, 2^1078165172 is an apocalyptic number.

It is an amenable number.

1078165172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1078165172 is a wasteful number, since it uses less digits than its factorization.

1078165172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38505910 (or 38505908 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 38.

The square root of 1078165172 is about 32835.4255644723. The cubic root of 1078165172 is about 1025.4042179665.

The spelling of 1078165172 in words is "one billion, seventy-eight million, one hundred sixty-five thousand, one hundred seventy-two".