121498830 has 48 divisors (see below), whose sum is σ = 334483344. Its totient is φ = 30493440.

The previous prime is 121498823. The next prime is 121498837. The reversal of 121498830 is 38894121.

It is an interprime number because it is at equal distance from previous prime (121498823) and next prime (121498837).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121498837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38176 + ... + 41235.

It is an arithmetic number, because the mean of its divisors is an integer number (6968403).

Almost surely, 2^121498830 is an apocalyptic number.

121498830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121498830 is an abundant number, since it is smaller than the sum of its proper divisors (212984514).

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

121498830 is a wasteful number, since it uses less digits than its factorization.

121498830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79441 (or 79438 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 121498830 is about 11022.6507701188. The cubic root of 121498830 is about 495.2874975123.

The spelling of 121498830 in words is "one hundred twenty-one million, four hundred ninety-eight thousand, eight hundred thirty".