121506740 has 48 divisors (see below), whose sum is σ = 263450880. Its totient is φ = 47049600.

The previous prime is 121506709. The next prime is 121506757. The reversal of 121506740 is 47605121.

It is a congruent number.

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, 83015 + ... + 84465.

It is an arithmetic number, because the mean of its divisors is an integer number (5488560).

Almost surely, 2^121506740 is an apocalyptic number.

121506740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121506740 is an abundant number, since it is smaller than the sum of its proper divisors (141944140).

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

121506740 is a wasteful number, since it uses less digits than its factorization.

121506740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592 (or 1590 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 121506740 is about 11023.0095708931. The cubic root of 121506740 is about 495.2982455968.

The spelling of 121506740 in words is "one hundred twenty-one million, five hundred six thousand, seven hundred forty".