249292142 has 16 divisors (see below), whose sum is σ = 421092864. Its totient is φ = 109659000.

The previous prime is 249292133. The next prime is 249292151. The reversal of 249292142 is 241292942.

249292142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (249292133) and next prime (249292151).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182084 + ... + 183447.

It is an arithmetic number, because the mean of its divisors is an integer number (26318304).

Almost surely, 2^249292142 is an apocalyptic number.

249292142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

249292142 is a deficient number, since it is larger than the sum of its proper divisors (171800722).

249292142 is a wasteful number, since it uses less digits than its factorization.

249292142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365575.

The product of its digits is 20736, while the sum is 35.

The square root of 249292142 is about 15788.9879979687. The cubic root of 249292142 is about 629.3653994447.

The spelling of 249292142 in words is "two hundred forty-nine million, two hundred ninety-two thousand, one hundred forty-two".