154120065 has 64 divisors (see below), whose sum is σ = 287539200. Its totient is φ = 69753600.

The previous prime is 154120049. The next prime is 154120067. The reversal of 154120065 is 560021451.

It is not a de Polignac number, because 154120065 - 2⁴ = 154120049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154120067) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147816 + ... + 148854.

It is an arithmetic number, because the mean of its divisors is an integer number (4492800).

Almost surely, 2^154120065 is an apocalyptic number.

154120065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154120065 is a deficient number, since it is larger than the sum of its proper divisors (133419135).

154120065 is a wasteful number, since it uses less digits than its factorization.

154120065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 154120065 is about 12414.5102601754. The cubic root of 154120065 is about 536.1501039189.

The spelling of 154120065 in words is "one hundred fifty-four million, one hundred twenty thousand, sixty-five".