121047392 has 24 divisors (see below), whose sum is σ = 246531600. Its totient is φ = 58436224.

The previous prime is 121047391. The next prime is 121047469. The reversal of 121047392 is 293740121.

It is a super-2 number, since 2×121047392² = 29304942220003328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121047391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64292 + ... + 66147.

It is an arithmetic number, because the mean of its divisors is an integer number (10272150).

Almost surely, 2^121047392 is an apocalyptic number.

It is an amenable number.

121047392 is an abundant number, since it is smaller than the sum of its proper divisors (125484208).

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

121047392 is a wasteful number, since it uses less digits than its factorization.

121047392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130478 (or 130470 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 121047392 is about 11002.1539709277. The cubic root of 121047392 is about 494.6733102697.

The spelling of 121047392 in words is "one hundred twenty-one million, forty-seven thousand, three hundred ninety-two".