121071375 has 64 divisors (see below), whose sum is σ = 231753600. Its totient is φ = 62294400.

The previous prime is 121071343. The next prime is 121071403. The reversal of 121071375 is 573170121.

It is a happy number.

It is not a de Polignac number, because 121071375 - 2⁵ = 121071343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 97257 + ... + 98493.

It is an arithmetic number, because the mean of its divisors is an integer number (3621150).

Almost surely, 2^121071375 is an apocalyptic number.

121071375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121071375 is a deficient number, since it is larger than the sum of its proper divisors (110682225).

121071375 is a wasteful number, since it uses less digits than its factorization.

121071375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290 (or 1274 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 121071375 is about 11003.2438398865. The cubic root of 121071375 is about 494.7059778235.

The spelling of 121071375 in words is "one hundred twenty-one million, seventy-one thousand, three hundred seventy-five".