2539155 has 16 divisors (see below), whose sum is σ = 4102560. Its totient is φ = 1340928.

The previous prime is 2539151. The next prime is 2539157. The reversal of 2539155 is 5519352.

It is not a de Polignac number, because 2539155 - 2² = 2539151 is a prime.

It is a super-2 number, since 2×2539155² = 12894616228050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2539151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 859 + ... + 2411.

It is an arithmetic number, because the mean of its divisors is an integer number (256410).

2^2539155 is an apocalyptic number.

2539155 is a deficient number, since it is larger than the sum of its proper divisors (1563405).

2539155 is a wasteful number, since it uses less digits than its factorization.

2539155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670.

The product of its digits is 6750, while the sum is 30.

The square root of 2539155 is about 1593.4726229214. The cubic root of 2539155 is about 136.4257670409.

The spelling of 2539155 in words is "two million, five hundred thirty-nine thousand, one hundred fifty-five".