121608370 has 32 divisors (see below), whose sum is σ = 236643120. Its totient is φ = 44728320.

The previous prime is 121608349. The next prime is 121608391. The reversal of 121608370 is 73806121.

It is an interprime number because it is at equal distance from previous prime (121608349) and next prime (121608391).

It can be written as a sum of positive squares in 8 ways, for example, as 33605209 + 88003161 = 5797^2 + 9381^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34866 + ... + 38194.

Almost surely, 2^121608370 is an apocalyptic number.

121608370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121608370 is a deficient number, since it is larger than the sum of its proper divisors (115034750).

121608370 is a wasteful number, since it uses less digits than its factorization.

121608370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 121608370 is about 11027.6185099050. The cubic root of 121608370 is about 495.4362986600.

The spelling of 121608370 in words is "one hundred twenty-one million, six hundred eight thousand, three hundred seventy".