121475530 has 24 divisors (see below), whose sum is σ = 240343236. Its totient is φ = 44172480.

The previous prime is 121475527. The next prime is 121475593. The reversal of 121475530 is 35574121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 120758121 + 717409 = 10989^2 + 847^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48987 + ... + 51406.

Almost surely, 2^121475530 is an apocalyptic number.

121475530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121475530 is a deficient number, since it is larger than the sum of its proper divisors (118867706).

121475530 is a wasteful number, since it uses less digits than its factorization.

121475530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100422 (or 100411 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 121475530 is about 11021.5938048905. The cubic root of 121475530 is about 495.2558348302.

The spelling of 121475530 in words is "one hundred twenty-one million, four hundred seventy-five thousand, five hundred thirty".