2399155 has 16 divisors (see below), whose sum is σ = 3171168. Its totient is φ = 1728000.

The previous prime is 2399143. The next prime is 2399167. The reversal of 2399155 is 5519932.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2399143) and next prime (2399167).

It is not a de Polignac number, because 2399155 - 2⁷ = 2399027 is a prime.

2399155 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2399155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9835 + ... + 10075.

It is an arithmetic number, because the mean of its divisors is an integer number (198198).

2^2399155 is an apocalyptic number.

2399155 is a deficient number, since it is larger than the sum of its proper divisors (772013).

2399155 is a wasteful number, since it uses less digits than its factorization.

2399155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438.

The product of its digits is 12150, while the sum is 34.

The square root of 2399155 is about 1548.9205918962. The cubic root of 2399155 is about 133.8708750930.

The spelling of 2399155 in words is "two million, three hundred ninety-nine thousand, one hundred fifty-five".