71472975 has 24 divisors (see below), whose sum is σ = 135050880. Its totient is φ = 32673120.

The previous prime is 71472967. The next prime is 71472997. The reversal of 71472975 is 57927417.

It is not a de Polignac number, because 71472975 - 2³ = 71472967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67545 + ... + 68594.

It is an arithmetic number, because the mean of its divisors is an integer number (5627120).

Almost surely, 2^71472975 is an apocalyptic number.

71472975 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

71472975 is a deficient number, since it is larger than the sum of its proper divisors (63577905).

71472975 is a wasteful number, since it uses less digits than its factorization.

71472975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136159 (or 136154 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The square root of 71472975 is about 8454.1690898633. The cubic root of 71472975 is about 414.9992258175. Note that the first 3 decimals are identical.

The spelling of 71472975 in words is "seventy-one million, four hundred seventy-two thousand, nine hundred seventy-five".