1972932165 has 24 divisors (see below), whose sum is σ = 3599737440. Its totient is φ = 996849504.

The previous prime is 1972932151. The next prime is 1972932253. The reversal of 1972932165 is 5612392791.

It is a happy number.

It is not a de Polignac number, because 1972932165 - 2⁵ = 1972932133 is a prime.

It is a super-2 number, since 2×1972932165² = 7784922655383174450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1972932165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1152907 + ... + 1154616.

It is an arithmetic number, because the mean of its divisors is an integer number (149989060).

Almost surely, 2^1972932165 is an apocalyptic number.

1972932165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1972932165 is a deficient number, since it is larger than the sum of its proper divisors (1626805275).

1972932165 is a wasteful number, since it uses less digits than its factorization.

1972932165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307553 (or 2307550 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 1972932165 is about 44417.7010323587. The cubic root of 1972932165 is about 1254.2113243972.

The spelling of 1972932165 in words is "one billion, nine hundred seventy-two million, nine hundred thirty-two thousand, one hundred sixty-five".