121454540 has 24 divisors (see below), whose sum is σ = 255352272. Its totient is φ = 48525120.

The previous prime is 121454539. The next prime is 121454561. The reversal of 121454540 is 45454121.

It is a super-2 number, since 2×121454540² = 29502410573223200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16895 + ... + 22985.

It is an arithmetic number, because the mean of its divisors is an integer number (10639678).

Almost surely, 2^121454540 is an apocalyptic number.

121454540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121454540 is an abundant number, since it is smaller than the sum of its proper divisors (133897732).

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

121454540 is a wasteful number, since it uses less digits than its factorization.

121454540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7097 (or 7095 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 121454540 is about 11020.6415421245. The cubic root of 121454540 is about 495.2273077714.

The spelling of 121454540 in words is "one hundred twenty-one million, four hundred fifty-four thousand, five hundred forty".