73245031 has 8 divisors (see below), whose sum is σ = 74390400. Its totient is φ = 72108408.

The previous prime is 73245023. The next prime is 73245037. The reversal of 73245031 is 13054237.

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 73245031 - 2³ = 73245023 is a prime.

It is a super-2 number, since 2×73245031² = 10729669132381922, 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 = 73244987 and 73245005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73245037) 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, 15820 + ... + 19918.

It is an arithmetic number, because the mean of its divisors is an integer number (9298800).

Almost surely, 2^73245031 is an apocalyptic number.

73245031 is a deficient number, since it is larger than the sum of its proper divisors (1145369).

73245031 is a wasteful number, since it uses less digits than its factorization.

73245031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4373.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 73245031 is about 8558.3310873090. The cubic root of 73245031 is about 418.4010082240.

Adding to 73245031 its reverse (13054237), we get a palindrome (86299268).

The spelling of 73245031 in words is "seventy-three million, two hundred forty-five thousand, thirty-one".