121765150 has 96 divisors (see below), whose sum is σ = 257671008. Its totient is φ = 42508800.

The previous prime is 121765139. The next prime is 121765157. The reversal of 121765150 is 51567121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121765157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1467009 + ... + 1467091.

It is an arithmetic number, because the mean of its divisors is an integer number (2684073).

Almost surely, 2^121765150 is an apocalyptic number.

121765150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121765150 is an abundant number, since it is smaller than the sum of its proper divisors (135905858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121765150 is a wasteful number, since it uses less digits than its factorization.

121765150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 121765150 is about 11034.7247360322. The cubic root of 121765150 is about 495.6491161027.

The spelling of 121765150 in words is "one hundred twenty-one million, seven hundred sixty-five thousand, one hundred fifty".