121625771 has 16 divisors (see below), whose sum is σ = 131459328. Its totient is φ = 112226400.

The previous prime is 121625737. The next prime is 121625773. The reversal of 121625771 is 177526121.

It is a cyclic number.

It is not a de Polignac number, because 121625771 - 2²² = 117431467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121625773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110936 + ... + 112026.

It is an arithmetic number, because the mean of its divisors is an integer number (8216208).

Almost surely, 2^121625771 is an apocalyptic number.

121625771 is a deficient number, since it is larger than the sum of its proper divisors (9833557).

121625771 is a wasteful number, since it uses less digits than its factorization.

121625771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282.

The product of its digits is 5880, while the sum is 32.

The square root of 121625771 is about 11028.4074552947. The cubic root of 121625771 is about 495.4599282722.

The spelling of 121625771 in words is "one hundred twenty-one million, six hundred twenty-five thousand, seven hundred seventy-one".