121463140 has 12 divisors (see below), whose sum is σ = 255072636. Its totient is φ = 48585248.

The previous prime is 121463137. The next prime is 121463149. The reversal of 121463140 is 41364121.

It can be written as a sum of positive squares in 2 ways, for example, as 12845056 + 108618084 = 3584^2 + 10422^2 .

It is not an unprimeable number, because it can be changed into a prime (121463149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3036559 + ... + 3036598.

It is an arithmetic number, because the mean of its divisors is an integer number (21256053).

Almost surely, 2^121463140 is an apocalyptic number.

121463140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121463140 is an abundant number, since it is smaller than the sum of its proper divisors (133609496).

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

121463140 is a wasteful number, since it uses less digits than its factorization.

121463140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6073166 (or 6073164 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 121463140 is about 11021.0317121402. The cubic root of 121463140 is about 495.2389962444.

The spelling of 121463140 in words is "one hundred twenty-one million, four hundred sixty-three thousand, one hundred forty".