121535454 has 32 divisors (see below), whose sum is σ = 253397376. Its totient is φ = 38823840.

The previous prime is 121535443. The next prime is 121535483. The reversal of 121535454 is 454535121.

It is a super-2 number, since 2×121535454² = 29541733157972232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10789 + ... + 18959.

It is an arithmetic number, because the mean of its divisors is an integer number (7918668).

Almost surely, 2^121535454 is an apocalyptic number.

121535454 is an abundant number, since it is smaller than the sum of its proper divisors (131861922).

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

121535454 is a wasteful number, since it uses less digits than its factorization.

121535454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8280.

The product of its digits is 12000, while the sum is 30.

The square root of 121535454 is about 11024.3119513192. The cubic root of 121535454 is about 495.3372581752.

The spelling of 121535454 in words is "one hundred twenty-one million, five hundred thirty-five thousand, four hundred fifty-four".