9142972 has 6 divisors (see below), whose sum is σ = 16000208. Its totient is φ = 4571484.

The previous prime is 9142963. The next prime is 9142981. The reversal of 9142972 is 2792419.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9142963) and next prime (9142981).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1142868 + ... + 1142875.

Almost surely, 2^9142972 is an apocalyptic number.

It is an amenable number.

9142972 is a deficient number, since it is larger than the sum of its proper divisors (6857236).

9142972 is a wasteful number, since it uses less digits than its factorization.

9142972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285747 (or 2285745 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The square root of 9142972 is about 3023.7347767289. The cubic root of 9142972 is about 209.1040590458.

The spelling of 9142972 in words is "nine million, one hundred forty-two thousand, nine hundred seventy-two".