121339438 has 16 divisors (see below), whose sum is σ = 210235824. Its totient is φ = 51909760.

The previous prime is 121339423. The next prime is 121339457. The reversal of 121339438 is 834933121.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161845 + ... + 162592.

It is an arithmetic number, because the mean of its divisors is an integer number (13139739).

Almost surely, 2^121339438 is an apocalyptic number.

121339438 is a deficient number, since it is larger than the sum of its proper divisors (88896386).

121339438 is a wasteful number, since it uses less digits than its factorization.

121339438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324467.

The product of its digits is 15552, while the sum is 34.

The square root of 121339438 is about 11015.4181945126. The cubic root of 121339438 is about 495.0708166546.

The spelling of 121339438 in words is "one hundred twenty-one million, three hundred thirty-nine thousand, four hundred thirty-eight".