2391255 has 16 divisors (see below), whose sum is σ = 4251360. Its totient is φ = 1275264.

The previous prime is 2391239. The next prime is 2391269. The reversal of 2391255 is 5521932.

It is not a de Polignac number, because 2391255 - 2⁴ = 2391239 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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, 8722 + ... + 8991.

It is an arithmetic number, because the mean of its divisors is an integer number (265710).

2^2391255 is an apocalyptic number.

2391255 is a deficient number, since it is larger than the sum of its proper divisors (1860105).

2391255 is a wasteful number, since it uses less digits than its factorization.

2391255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17727 (or 17721 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 2391255 is about 1546.3683261112. The cubic root of 2391255 is about 133.7237756837.

The spelling of 2391255 in words is "two million, three hundred ninety-one thousand, two hundred fifty-five".