72650133 has 12 divisors (see below), whose sum is σ = 108558060. Its totient is φ = 46763136.

The previous prime is 72650107. The next prime is 72650147. The reversal of 72650133 is 33105627.

It is a happy number.

72650133 is a `hidden beast` number, since 7 + 2 + 650 + 1 + 3 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14311089 + 58339044 = 3783^2 + 7638^2 .

It is not a de Polignac number, because 72650133 - 2⁶ = 72650069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72650097 and 72650106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72650153) 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, 138916 + ... + 139437.

It is an arithmetic number, because the mean of its divisors is an integer number (9046505).

Almost surely, 2^72650133 is an apocalyptic number.

It is an amenable number.

72650133 is a deficient number, since it is larger than the sum of its proper divisors (35907927).

72650133 is a wasteful number, since it uses less digits than its factorization.

72650133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278388 (or 278385 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 72650133 is about 8523.5047369025. The cubic root of 72650133 is about 417.2651730225.

The spelling of 72650133 in words is "seventy-two million, six hundred fifty thousand, one hundred thirty-three".