121739130 has 24 divisors (see below), whose sum is σ = 316521972. Its totient is φ = 32463744.

The previous prime is 121739087. The next prime is 121739131. The reversal of 121739130 is 31937121.

It can be written as a sum of positive squares in 2 ways, for example, as 121682961 + 56169 = 11031^2 + 237^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121739094 and 121739103.

It is not an unprimeable number, because it can be changed into a prime (121739131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 676239 + ... + 676418.

Almost surely, 2^121739130 is an apocalyptic number.

121739130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121739130 is an abundant number, since it is smaller than the sum of its proper divisors (194782842).

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

121739130 is a wasteful number, since it uses less digits than its factorization.

121739130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352670 (or 1352667 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 121739130 is about 11033.5456676446. The cubic root of 121739130 is about 495.6138084942.

The spelling of 121739130 in words is "one hundred twenty-one million, seven hundred thirty-nine thousand, one hundred thirty".