2499155 has 16 divisors (see below), whose sum is σ = 3132864. Its totient is φ = 1912320.

The previous prime is 2499151. The next prime is 2499163. The reversal of 2499155 is 5519942.

2499155 = T₄₂ + T₄₃ + ... + T₂₄₆.

It is not a de Polignac number, because 2499155 - 2² = 2499151 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2499151) 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, 14882 + ... + 15048.

It is an arithmetic number, because the mean of its divisors is an integer number (195804).

2^2499155 is an apocalyptic number.

2499155 is a deficient number, since it is larger than the sum of its proper divisors (633709).

2499155 is a wasteful number, since it uses less digits than its factorization.

2499155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286.

The product of its digits is 16200, while the sum is 35.

The square root of 2499155 is about 1580.8715950386. The cubic root of 2499155 is about 135.7055878874.

The spelling of 2499155 in words is "two million, four hundred ninety-nine thousand, one hundred fifty-five".