73018131 has 16 divisors (see below), whose sum is σ = 100387488. Its totient is φ = 47174400.

The previous prime is 73018109. The next prime is 73018139. The reversal of 73018131 is 13181037.

It is not a de Polignac number, because 73018131 - 2⁶ = 73018067 is a prime.

It is a super-2 number, since 2×73018131² = 10663294909466322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73018139) 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, 30021 + ... + 32361.

It is an arithmetic number, because the mean of its divisors is an integer number (6274218).

Almost surely, 2^73018131 is an apocalyptic number.

73018131 is a deficient number, since it is larger than the sum of its proper divisors (27369357).

73018131 is a wasteful number, since it uses less digits than its factorization.

73018131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 73018131 is about 8545.0647159632. The cubic root of 73018131 is about 417.9685175040.

Adding to 73018131 its reverse (13181037), we get a palindrome (86199168).

The spelling of 73018131 in words is "seventy-three million, eighteen thousand, one hundred thirty-one".