72149375 has 20 divisors (see below), whose sum is σ = 90720960. Its totient is φ = 57360000.

The previous prime is 72149347. The next prime is 72149393. The reversal of 72149375 is 57394127.

It is not a de Polignac number, because 72149375 - 2¹⁶ = 72083839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 150386 + ... + 150864.

It is an arithmetic number, because the mean of its divisors is an integer number (4536048).

Almost surely, 2^72149375 is an apocalyptic number.

72149375 is a deficient number, since it is larger than the sum of its proper divisors (18571585).

72149375 is an equidigital number, since it uses as much as digits as its factorization.

72149375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 725 counting only the distinct ones).

The product of its digits is 52920, while the sum is 38.

The square root of 72149375 is about 8494.0788199781. The cubic root of 72149375 is about 416.3042626612.

The spelling of 72149375 in words is "seventy-two million, one hundred forty-nine thousand, three hundred seventy-five".