73015131 has 8 divisors (see below), whose sum is σ = 111261184. Its totient is φ = 41722920.

The previous prime is 73015121. The next prime is 73015139. The reversal of 73015131 is 13151037.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73015131 - 2⁵ = 73015099 is a prime.

It is a super-2 number, since 2×73015131² = 10662418709894322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 3476911 = 73015131 / (7 + 3 + 0 + 1 + 5 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73015098 and 73015107.

It is not an unprimeable number, because it can be changed into a prime (73015139) 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, 1738435 + ... + 1738476.

It is an arithmetic number, because the mean of its divisors is an integer number (13907648).

Almost surely, 2^73015131 is an apocalyptic number.

73015131 is a deficient number, since it is larger than the sum of its proper divisors (38246053).

73015131 is a wasteful number, since it uses less digits than its factorization.

73015131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476921.

The product of its (nonzero) digits is 315, while the sum is 21.

The square root of 73015131 is about 8544.8891742374. The cubic root of 73015131 is about 417.9627932512.

Adding to 73015131 its reverse (13151037), we get a palindrome (86166168).

The spelling of 73015131 in words is "seventy-three million, fifteen thousand, one hundred thirty-one".