72195475 has 24 divisors (see below), whose sum is σ = 98868672. Its totient is φ = 51856800.

The previous prime is 72195469. The next prime is 72195479. The reversal of 72195475 is 57459127.

It is not a de Polignac number, because 72195475 - 2¹¹ = 72193427 is a prime.

It is a super-2 number, since 2×72195475² = 10424373220951250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72195479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21244 + ... + 24406.

It is an arithmetic number, because the mean of its divisors is an integer number (4119528).

Almost surely, 2^72195475 is an apocalyptic number.

72195475 is a deficient number, since it is larger than the sum of its proper divisors (26673197).

72195475 is a wasteful number, since it uses less digits than its factorization.

72195475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3267 (or 3262 counting only the distinct ones).

The product of its digits is 88200, while the sum is 40.

The square root of 72195475 is about 8496.7920417061. The cubic root of 72195475 is about 416.3929099546.

The spelling of 72195475 in words is "seventy-two million, one hundred ninety-five thousand, four hundred seventy-five".