73064531 has 4 divisors (see below), whose sum is σ = 73314192. Its totient is φ = 72814872.

The previous prime is 73064507. The next prime is 73064533. The reversal of 73064531 is 13546037.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73064531 is a prime.

It is a super-2 number, since 2×73064531² = 10676851380499922, 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 = 73064494 and 73064503.

It is not an unprimeable number, because it can be changed into a prime (73064533) 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, 124391 + ... + 124976.

It is an arithmetic number, because the mean of its divisors is an integer number (18328548).

Almost surely, 2^73064531 is an apocalyptic number.

73064531 is a deficient number, since it is larger than the sum of its proper divisors (249661).

73064531 is a wasteful number, since it uses less digits than its factorization.

73064531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249660.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 73064531 is about 8547.7793022516. The cubic root of 73064531 is about 418.0570326551.

The spelling of 73064531 in words is "seventy-three million, sixty-four thousand, five hundred thirty-one".