121377164 has 24 divisors (see below), whose sum is σ = 222179328. Its totient is φ = 57910160.

The previous prime is 121377079. The next prime is 121377211. The reversal of 121377164 is 461773121.

It is a self number, because there is not a number n which added to its sum of digits gives 121377164.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43829 + ... + 46515.

It is an arithmetic number, because the mean of its divisors is an integer number (9257472).

Almost surely, 2^121377164 is an apocalyptic number.

It is an amenable number.

121377164 is a deficient number, since it is larger than the sum of its proper divisors (100802164).

121377164 is a wasteful number, since it uses less digits than its factorization.

121377164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205 (or 3203 counting only the distinct ones).

The product of its digits is 7056, while the sum is 32.

The square root of 121377164 is about 11017.1304793944. The cubic root of 121377164 is about 495.1221193105.

The spelling of 121377164 in words is "one hundred twenty-one million, three hundred seventy-seven thousand, one hundred sixty-four".