76113521 has 8 divisors (see below), whose sum is σ = 83592000. Its totient is φ = 68728240.

The previous prime is 76113503. The next prime is 76113547. The reversal of 76113521 is 12531167.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76113521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76113581) 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, 21581 + ... + 24858.

It is an arithmetic number, because the mean of its divisors is an integer number (10449000).

Almost surely, 2^76113521 is an apocalyptic number.

It is an amenable number.

76113521 is a deficient number, since it is larger than the sum of its proper divisors (7478479).

76113521 is a wasteful number, since it uses less digits than its factorization.

76113521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46599.

The product of its digits is 1260, while the sum is 26.

The square root of 76113521 is about 8724.3063334571. The cubic root of 76113521 is about 423.7931547897.

Adding to 76113521 its reverse (12531167), we get a palindrome (88644688).

The spelling of 76113521 in words is "seventy-six million, one hundred thirteen thousand, five hundred twenty-one".