72541229 has 4 divisors (see below), whose sum is σ = 72659040. Its totient is φ = 72423420.

The previous prime is 72541223. The next prime is 72541237. The reversal of 72541229 is 92214527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92214527 = 383 ⋅240769.

It is a cyclic number.

It is not a de Polignac number, because 72541229 - 2⁴ = 72541213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72541195 and 72541204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72541223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57977 + ... + 59214.

It is an arithmetic number, because the mean of its divisors is an integer number (18164760).

Almost surely, 2^72541229 is an apocalyptic number.

It is an amenable number.

72541229 is a deficient number, since it is larger than the sum of its proper divisors (117811).

72541229 is a wasteful number, since it uses less digits than its factorization.

72541229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117810.

The product of its digits is 10080, while the sum is 32.

The square root of 72541229 is about 8517.1138891059. The cubic root of 72541229 is about 417.0565724803.

The spelling of 72541229 in words is "seventy-two million, five hundred forty-one thousand, two hundred twenty-nine".