249070138154 has 16 divisors (see below), whose sum is σ = 378238533120. Its totient is φ = 122991675360.

The previous prime is 249070138153. The next prime is 249070138169. The reversal of 249070138154 is 451831070942.

It is not an unprimeable number, because it can be changed into a prime (249070138153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217334 + ... + 738494.

It is an arithmetic number, because the mean of its divisors is an integer number (23639908320).

Almost surely, 2^249070138154 is an apocalyptic number.

249070138154 is a deficient number, since it is larger than the sum of its proper divisors (129168394966).

249070138154 is a wasteful number, since it uses less digits than its factorization.

249070138154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524125.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 249070138154 in words is "two hundred forty-nine billion, seventy million, one hundred thirty-eight thousand, one hundred fifty-four".