72549237 has 8 divisors (see below), whose sum is σ = 97273440. Its totient is φ = 48095600.

The previous prime is 72549227. The next prime is 72549263. The reversal of 72549237 is 73294527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72549237 - 2⁷ = 72549109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72549195 and 72549204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72549227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67014 + ... + 68087.

It is an arithmetic number, because the mean of its divisors is an integer number (12159180).

Almost surely, 2^72549237 is an apocalyptic number.

It is an amenable number.

72549237 is a deficient number, since it is larger than the sum of its proper divisors (24724203).

72549237 is a wasteful number, since it uses less digits than its factorization.

72549237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135283.

The product of its digits is 105840, while the sum is 39.

The square root of 72549237 is about 8517.5839884324. The cubic root of 72549237 is about 417.0719185402.

The spelling of 72549237 in words is "seventy-two million, five hundred forty-nine thousand, two hundred thirty-seven".