1165972 has 12 divisors (see below), whose sum is σ = 2106496. Its totient is φ = 564120.

The previous prime is 1165951. The next prime is 1165991. The reversal of 1165972 is 2795611.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 4578 + ... + 4825.

2^1165972 is an apocalyptic number.

It is an amenable number.

1165972 is a deficient number, since it is larger than the sum of its proper divisors (940524).

1165972 is a wasteful number, since it uses less digits than its factorization.

1165972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9438 (or 9436 counting only the distinct ones).

The product of its digits is 3780, while the sum is 31.

The square root of 1165972 is about 1079.8018336713. The cubic root of 1165972 is about 105.2517616961.

The spelling of 1165972 in words is "one million, one hundred sixty-five thousand, nine hundred seventy-two".