73134731 has 4 divisors (see below), whose sum is σ = 77436792. Its totient is φ = 68832672.

The previous prime is 73134727. The next prime is 73134767. The reversal of 73134731 is 13743137.

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

It is a cyclic number.

It is not a de Polignac number, because 73134731 - 2² = 73134727 is a prime.

It is a super-2 number, since 2×73134731² = 10697377756884722, 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 = 73134694 and 73134703.

It is not an unprimeable number, because it can be changed into a prime (73134031) 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, 2151005 + ... + 2151038.

It is an arithmetic number, because the mean of its divisors is an integer number (19359198).

Almost surely, 2^73134731 is an apocalyptic number.

73134731 is a deficient number, since it is larger than the sum of its proper divisors (4302061).

73134731 is a wasteful number, since it uses less digits than its factorization.

73134731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302060.

The product of its digits is 5292, while the sum is 29.

The square root of 73134731 is about 8551.8846460883. The cubic root of 73134731 is about 418.1908787648.

Adding to 73134731 its reverse (13743137), we get a palindrome (86877868).

The spelling of 73134731 in words is "seventy-three million, one hundred thirty-four thousand, seven hundred thirty-one".