121153039 has 12 divisors (see below), whose sum is σ = 145794600. Its totient is φ = 100263408.

The previous prime is 121153037. The next prime is 121153061. The reversal of 121153039 is 930351121.

It is not a de Polignac number, because 121153039 - 2¹ = 121153037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121153037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41209 + ... + 44050.

It is an arithmetic number, because the mean of its divisors is an integer number (12149550).

Almost surely, 2^121153039 is an apocalyptic number.

121153039 is a deficient number, since it is larger than the sum of its proper divisors (24641561).

121153039 is an equidigital number, since it uses as much as digits as its factorization.

121153039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85302 (or 85295 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 121153039 is about 11006.9541200098. The cubic root of 121153039 is about 494.8171810677.

The spelling of 121153039 in words is "one hundred twenty-one million, one hundred fifty-three thousand, thirty-nine".