121071740 has 24 divisors (see below), whose sum is σ = 262453632. Its totient is φ = 46866240.

The previous prime is 121071737. The next prime is 121071749. The reversal of 121071740 is 47170121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121071749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97019 + ... + 98258.

It is an arithmetic number, because the mean of its divisors is an integer number (10935568).

Almost surely, 2^121071740 is an apocalyptic number.

121071740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121071740 is an abundant number, since it is smaller than the sum of its proper divisors (141381892).

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

121071740 is a wasteful number, since it uses less digits than its factorization.

121071740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195317 (or 195315 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 121071740 is about 11003.2604258920. The cubic root of 121071740 is about 494.7064749614.

The spelling of 121071740 in words is "one hundred twenty-one million, seventy-one thousand, seven hundred forty".