121903740 has 72 divisors (see below), whose sum is σ = 422604000. Its totient is φ = 27863424.

The previous prime is 121903729. The next prime is 121903741. The reversal of 121903740 is 47309121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121903741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47115 + ... + 49634.

It is an arithmetic number, because the mean of its divisors is an integer number (5869500).

Almost surely, 2^121903740 is an apocalyptic number.

121903740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121903740 is an abundant number, since it is smaller than the sum of its proper divisors (300700260).

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

121903740 is a wasteful number, since it uses less digits than its factorization.

121903740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96771 (or 96766 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 121903740 is about 11041.0026718591. The cubic root of 121903740 is about 495.8370898820.

The spelling of 121903740 in words is "one hundred twenty-one million, nine hundred three thousand, seven hundred forty".