121354154 has 32 divisors (see below), whose sum is σ = 195063120. Its totient is φ = 56512512.

The previous prime is 121354139. The next prime is 121354201. The reversal of 121354154 is 451453121.

It can be written as a sum of positive squares in 8 ways, for example, as 102475129 + 18879025 = 10123^2 + 4345^2 .

It is a Curzon 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, 414032 + ... + 414324.

Almost surely, 2^121354154 is an apocalyptic number.

121354154 is a deficient number, since it is larger than the sum of its proper divisors (73708966).

121354154 is a wasteful number, since it uses less digits than its factorization.

121354154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554.

The product of its digits is 2400, while the sum is 26.

The square root of 121354154 is about 11016.0861470851. The cubic root of 121354154 is about 495.0908298445.

The spelling of 121354154 in words is "one hundred twenty-one million, three hundred fifty-four thousand, one hundred fifty-four".