73513137 has 16 divisors (see below), whose sum is σ = 99817472. Its totient is φ = 48114000.

The previous prime is 73513133. The next prime is 73513157. The reversal of 73513137 is 73131537.

It is not a de Polignac number, because 73513137 - 2² = 73513133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73513133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97512 + ... + 98262.

It is an arithmetic number, because the mean of its divisors is an integer number (6238592).

Almost surely, 2^73513137 is an apocalyptic number.

It is an amenable number.

73513137 is a deficient number, since it is larger than the sum of its proper divisors (26304335).

73513137 is a wasteful number, since it uses less digits than its factorization.

73513137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308.

The product of its digits is 6615, while the sum is 30.

The square root of 73513137 is about 8573.9802309079. The cubic root of 73513137 is about 418.9108914085.

The spelling of 73513137 in words is "seventy-three million, five hundred thirteen thousand, one hundred thirty-seven".