76533131 has 4 divisors (see below), whose sum is σ = 78601632. Its totient is φ = 74464632.

The previous prime is 76533103. The next prime is 76533137. The reversal of 76533131 is 13133567.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76533131 is a prime.

It is a super-2 number, since 2×76533131² = 11714640281326322, 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 = 76533094 and 76533103.

It is not an unprimeable number, because it can be changed into a prime (76533137) 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, 1034195 + ... + 1034268.

It is an arithmetic number, because the mean of its divisors is an integer number (19650408).

Almost surely, 2^76533131 is an apocalyptic number.

76533131 is a deficient number, since it is larger than the sum of its proper divisors (2068501).

76533131 is a wasteful number, since it uses less digits than its factorization.

76533131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068500.

The product of its digits is 5670, while the sum is 29.

The square root of 76533131 is about 8748.3216104576. The cubic root of 76533131 is about 424.5705114504.

Adding to 76533131 its reverse (13133567), we get a palindrome (89666698).

The spelling of 76533131 in words is "seventy-six million, five hundred thirty-three thousand, one hundred thirty-one".