121948554 has 48 divisors (see below), whose sum is σ = 305551008. Its totient is φ = 32161248.

The previous prime is 121948549. The next prime is 121948579. The reversal of 121948554 is 455849121.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12132 + ... + 19775.

It is an arithmetic number, because the mean of its divisors is an integer number (6365646).

Almost surely, 2^121948554 is an apocalyptic number.

121948554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121948554 is an abundant number, since it is smaller than the sum of its proper divisors (183602454).

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

121948554 is a wasteful number, since it uses less digits than its factorization.

121948554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31939 (or 31932 counting only the distinct ones).

The product of its digits is 57600, while the sum is 39.

The square root of 121948554 is about 11043.0319206276. The cubic root of 121948554 is about 495.8978419722.

The spelling of 121948554 in words is "one hundred twenty-one million, nine hundred forty-eight thousand, five hundred fifty-four".