120151405 has 16 divisors (see below), whose sum is σ = 157627584. Its totient is φ = 87194880.

The previous prime is 120151403. The next prime is 120151433. The reversal of 120151405 is 504151021.

It is not a de Polignac number, because 120151405 - 2¹ = 120151403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120151403) 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, 26677 + ... + 30853.

It is an arithmetic number, because the mean of its divisors is an integer number (9851724).

Almost surely, 2^120151405 is an apocalyptic number.

It is an amenable number.

120151405 is a deficient number, since it is larger than the sum of its proper divisors (37476179).

120151405 is a wasteful number, since it uses less digits than its factorization.

120151405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4716.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 120151405 is about 10961.3596328193. The cubic root of 120151405 is about 493.4497703715.

It can be divided in two parts, 120 and 151405, that added together give a triangular number (151525 = T₅₅₀).

The spelling of 120151405 in words is "one hundred twenty million, one hundred fifty-one thousand, four hundred five".