121463540 has 24 divisors (see below), whose sum is σ = 278262432. Its totient is φ = 44168480.

The previous prime is 121463539. The next prime is 121463543. The reversal of 121463540 is 45364121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121463543) 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, 275834 + ... + 276273.

It is an arithmetic number, because the mean of its divisors is an integer number (11594268).

Almost surely, 2^121463540 is an apocalyptic number.

121463540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121463540 is an abundant number, since it is smaller than the sum of its proper divisors (156798892).

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

121463540 is a wasteful number, since it uses less digits than its factorization.

121463540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552127 (or 552125 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 121463540 is about 11021.0498592466. The cubic root of 121463540 is about 495.2395398808.

The spelling of 121463540 in words is "one hundred twenty-one million, four hundred sixty-three thousand, five hundred forty".