72245107 has 12 divisors (see below), whose sum is σ = 80507560. Its totient is φ = 64769760.

The previous prime is 72245101. The next prime is 72245137. The reversal of 72245107 is 70154227.

It is not a de Polignac number, because 72245107 - 2³ = 72245099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72245101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4744 + ... + 12922.

Almost surely, 2^72245107 is an apocalyptic number.

72245107 is a deficient number, since it is larger than the sum of its proper divisors (8262453).

72245107 is a wasteful number, since it uses less digits than its factorization.

72245107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8274 (or 8263 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 72245107 is about 8499.7121715973. The cubic root of 72245107 is about 416.4883068794.

The spelling of 72245107 in words is "seventy-two million, two hundred forty-five thousand, one hundred seven".