121342554 has 24 divisors (see below), whose sum is σ = 271975860. Its totient is φ = 39052608.

The previous prime is 121342541. The next prime is 121342589. The reversal of 121342554 is 455243121.

It can be written as a sum of positive squares in 2 ways, for example, as 119311929 + 2030625 = 10923^2 + 1425^2 .

It is a super-2 number, since 2×121342554² = 29448030822485832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115707 + ... + 116750.

Almost surely, 2^121342554 is an apocalyptic number.

121342554 is an abundant number, since it is smaller than the sum of its proper divisors (150633306).

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

121342554 is a wasteful number, since it uses less digits than its factorization.

121342554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232494 (or 232491 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 121342554 is about 11015.5596317209. The cubic root of 121342554 is about 495.0750544289.

Adding to 121342554 its reverse (455243121), we get a palindrome (576585675).

The spelling of 121342554 in words is "one hundred twenty-one million, three hundred forty-two thousand, five hundred fifty-four".