72125476 has 6 divisors (see below), whose sum is σ = 126219590. Its totient is φ = 36062736.

The previous prime is 72125461. The next prime is 72125477. The reversal of 72125476 is 67452127.

It can be written as a sum of positive squares in only one way, i.e., 40653376 + 31472100 = 6376^2 + 5610^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (72125477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9015681 + ... + 9015688.

Almost surely, 2^72125476 is an apocalyptic number.

It is an amenable number.

72125476 is a deficient number, since it is larger than the sum of its proper divisors (54094114).

72125476 is a wasteful number, since it uses less digits than its factorization.

72125476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18031373 (or 18031371 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 72125476 is about 8492.6718999382. The cubic root of 72125476 is about 416.2582915800.

The spelling of 72125476 in words is "seventy-two million, one hundred twenty-five thousand, four hundred seventy-six".