121061439 has 16 divisors (see below), whose sum is σ = 179520000. Its totient is φ = 80631288.

The previous prime is 121061431. The next prime is 121061453. The reversal of 121061439 is 934160121.

121061439 is a `hidden beast` number, since 1 + 2 + 10 + 614 + 39 = 666.

It is not a de Polignac number, because 121061439 - 2³ = 121061431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121061431) 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, 52852 + ... + 55094.

It is an arithmetic number, because the mean of its divisors is an integer number (11220000).

Almost surely, 2^121061439 is an apocalyptic number.

121061439 is a deficient number, since it is larger than the sum of its proper divisors (58458561).

121061439 is a wasteful number, since it uses less digits than its factorization.

121061439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4251 (or 4245 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 121061439 is about 11002.7923274049. The cubic root of 121061439 is about 494.6924443931.

The spelling of 121061439 in words is "one hundred twenty-one million, sixty-one thousand, four hundred thirty-nine".