120921495 has 16 divisors (see below), whose sum is σ = 193858272. Its totient is φ = 64363520.

The previous prime is 120921487. The next prime is 120921497. The reversal of 120921495 is 594129021.

It is not a de Polignac number, because 120921495 - 2³ = 120921487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120921497) 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, 79 + ... + 15551.

It is an arithmetic number, because the mean of its divisors is an integer number (12116142).

Almost surely, 2^120921495 is an apocalyptic number.

120921495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120921495 is a deficient number, since it is larger than the sum of its proper divisors (72936777).

120921495 is a wasteful number, since it uses less digits than its factorization.

120921495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16002.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 120921495 is about 10996.4310119238. The cubic root of 120921495 is about 494.5017535260.

It can be divided in two parts, 120921 and 495, that multiplied together give a palindrome (59855895).

The spelling of 120921495 in words is "one hundred twenty million, nine hundred twenty-one thousand, four hundred ninety-five".