248297138 has 32 divisors (see below), whose sum is σ = 401848128. Its totient is φ = 114649600.

The previous prime is 248297131. The next prime is 248297141. The reversal of 248297138 is 831792842.

It is not an unprimeable number, because it can be changed into a prime (248297131) 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, 476318 + ... + 476838.

It is an arithmetic number, because the mean of its divisors is an integer number (12557754).

Almost surely, 2^248297138 is an apocalyptic number.

248297138 is a deficient number, since it is larger than the sum of its proper divisors (153550990).

248297138 is a wasteful number, since it uses less digits than its factorization.

248297138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778.

The product of its digits is 193536, while the sum is 44.

The square root of 248297138 is about 15757.4470648008. The cubic root of 248297138 is about 628.5269506456.

The spelling of 248297138 in words is "two hundred forty-eight million, two hundred ninety-seven thousand, one hundred thirty-eight".