72741031 has 8 divisors (see below), whose sum is σ = 79643664. Its totient is φ = 65886720.

The previous prime is 72740981. The next prime is 72741037. The reversal of 72741031 is 13014727.

It is a happy number.

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 72741031 - 2¹¹ = 72738983 is a prime.

It is a super-2 number, since 2×72741031² = 10582515181885922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72740987 and 72741005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72741037) 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, 8890 + ... + 14983.

It is an arithmetic number, because the mean of its divisors is an integer number (9955458).

Almost surely, 2^72741031 is an apocalyptic number.

72741031 is a deficient number, since it is larger than the sum of its proper divisors (6902633).

72741031 is a wasteful number, since it uses less digits than its factorization.

72741031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24161.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 72741031 is about 8528.8352663186. The cubic root of 72741031 is about 417.4391243547.

Adding to 72741031 its reverse (13014727), we get a palindrome (85755758).

The spelling of 72741031 in words is "seventy-two million, seven hundred forty-one thousand, thirty-one".