73765131 has 8 divisors (see below), whose sum is σ = 107294784. Its totient is φ = 44706120.

The previous prime is 73765129. The next prime is 73765141. The reversal of 73765131 is 13156737.

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

It is not a de Polignac number, because 73765131 - 2¹ = 73765129 is a prime.

It is a super-2 number, since 2×73765131² = 10882589102894322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2235307 = 73765131 / (7 + 3 + 7 + 6 + 5 + 1 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 73765092 and 73765101.

It is not an unprimeable number, because it can be changed into a prime (73765141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117621 + ... + 1117686.

It is an arithmetic number, because the mean of its divisors is an integer number (13411848).

Almost surely, 2^73765131 is an apocalyptic number.

73765131 is a deficient number, since it is larger than the sum of its proper divisors (33529653).

73765131 is a wasteful number, since it uses less digits than its factorization.

73765131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235321.

The product of its digits is 13230, while the sum is 33.

The square root of 73765131 is about 8588.6629343571. The cubic root of 73765131 is about 419.3890038730.

The spelling of 73765131 in words is "seventy-three million, seven hundred sixty-five thousand, one hundred thirty-one".