121501250 has 40 divisors (see below), whose sum is σ = 245293356. Its totient is φ = 44856000.

The previous prime is 121501189. The next prime is 121501267. The reversal of 121501250 is 52105121.

It can be written as a sum of positive squares in 10 ways, for example, as 4363921 + 117137329 = 2089^2 + 10823^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12512 + ... + 19988.

Almost surely, 2^121501250 is an apocalyptic number.

121501250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121501250 is an abundant number, since it is smaller than the sum of its proper divisors (123792106).

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

121501250 is an equidigital number, since it uses as much as digits as its factorization.

121501250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7512 (or 7497 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 121501250 is about 11022.7605435299. The cubic root of 121501250 is about 495.2907858506.

Adding to 121501250 its reverse (52105121), we get a palindrome (173606371).

The spelling of 121501250 in words is "one hundred twenty-one million, five hundred one thousand, two hundred fifty".