76520121 has 16 divisors (see below), whose sum is σ = 105807360. Its totient is φ = 49138560.

The previous prime is 76520083. The next prime is 76520131. The reversal of 76520121 is 12102567.

It is not a de Polignac number, because 76520121 - 2¹⁴ = 76503737 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 76520091 and 76520100.

It is not an unprimeable number, because it can be changed into a prime (76520131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19501 + ... + 23093.

It is an arithmetic number, because the mean of its divisors is an integer number (6612960).

Almost surely, 2^76520121 is an apocalyptic number.

It is an amenable number.

76520121 is a deficient number, since it is larger than the sum of its proper divisors (29287239).

76520121 is a wasteful number, since it uses less digits than its factorization.

76520121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 76520121 is about 8747.5780076545. The cubic root of 76520121 is about 424.5464522606.

Adding to 76520121 its reverse (12102567), we get a palindrome (88622688).

The spelling of 76520121 in words is "seventy-six million, five hundred twenty thousand, one hundred twenty-one".