121620527 has 16 divisors (see below), whose sum is σ = 145408512. Its totient is φ = 99459360.

The previous prime is 121620523. The next prime is 121620529. The reversal of 121620527 is 725026121.

It is not a de Polignac number, because 121620527 - 2² = 121620523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121620496 and 121620505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121620523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87377 + ... + 88757.

It is an arithmetic number, because the mean of its divisors is an integer number (9088032).

Almost surely, 2^121620527 is an apocalyptic number.

121620527 is a deficient number, since it is larger than the sum of its proper divisors (23787985).

121620527 is a wasteful number, since it uses less digits than its factorization.

121620527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 121620527 is about 11028.1697030831. The cubic root of 121620527 is about 495.4528074425.

Adding to 121620527 its reverse (725026121), we get a palindrome (846646648).

The spelling of 121620527 in words is "one hundred twenty-one million, six hundred twenty thousand, five hundred twenty-seven".