121475156 has 24 divisors (see below), whose sum is σ = 235714080. Its totient is φ = 54309600.

The previous prime is 121475153. The next prime is 121475161. The reversal of 121475156 is 651574121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121475153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19946 + ... + 25313.

It is an arithmetic number, because the mean of its divisors is an integer number (9821420).

Almost surely, 2^121475156 is an apocalyptic number.

It is an amenable number.

121475156 is a deficient number, since it is larger than the sum of its proper divisors (114238924).

121475156 is a wasteful number, since it uses less digits than its factorization.

121475156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45335 (or 45333 counting only the distinct ones).

The product of its digits is 8400, while the sum is 32.

The square root of 121475156 is about 11021.5768381843. The cubic root of 121475156 is about 495.2553265636.

The spelling of 121475156 in words is "one hundred twenty-one million, four hundred seventy-five thousand, one hundred fifty-six".