121426580 has 48 divisors (see below), whose sum is σ = 294549696. Its totient is φ = 41556480.

The previous prime is 121426577. The next prime is 121426583. The reversal of 121426580 is 85624121.

It is an interprime number because it is at equal distance from previous prime (121426577) and next prime (121426583).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121426583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12494 + ... + 19973.

It is an arithmetic number, because the mean of its divisors is an integer number (6136452).

Almost surely, 2^121426580 is an apocalyptic number.

121426580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121426580 is an abundant number, since it is smaller than the sum of its proper divisors (173123116).

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

121426580 is a wasteful number, since it uses less digits than its factorization.

121426580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32504 (or 32502 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 121426580 is about 11019.3729404173. The cubic root of 121426580 is about 495.1893028295.

The spelling of 121426580 in words is "one hundred twenty-one million, four hundred twenty-six thousand, five hundred eighty".