121560054 has 128 divisors (see below), whose sum is σ = 322375680. Its totient is φ = 29635200.

The previous prime is 121559993. The next prime is 121560071. The reversal of 121560054 is 450065121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 576009 + ... + 576219.

It is an arithmetic number, because the mean of its divisors is an integer number (2518560).

Almost surely, 2^121560054 is an apocalyptic number.

121560054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121560054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161187840).

121560054 is an abundant number, since it is smaller than the sum of its proper divisors (200815626).

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

121560054 is a wasteful number, since it uses less digits than its factorization.

121560054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 121560054 is about 11025.4276107551. The cubic root of 121560054 is about 495.3706763373.

The spelling of 121560054 in words is "one hundred twenty-one million, five hundred sixty thousand, fifty-four".