249158948 has 6 divisors (see below), whose sum is σ = 436028166. Its totient is φ = 124579472.

The previous prime is 249158941. The next prime is 249158983. The reversal of 249158948 is 849851942.

It can be written as a sum of positive squares in only one way, i.e., 138109504 + 111049444 = 11752^2 + 10538^2 .

It is a junction number, because it is equal to n+sod(n) for n = 249158896 and 249158905.

It is not an unprimeable number, because it can be changed into a prime (249158941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31144865 + ... + 31144872.

It is an arithmetic number, because the mean of its divisors is an integer number (72671361).

Almost surely, 2^249158948 is an apocalyptic number.

It is an amenable number.

249158948 is a deficient number, since it is larger than the sum of its proper divisors (186869218).

249158948 is a wasteful number, since it uses less digits than its factorization.

249158948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62289741 (or 62289739 counting only the distinct ones).

The product of its digits is 829440, while the sum is 50.

The square root of 249158948 is about 15784.7694946743. The cubic root of 249158948 is about 629.2532918479.

The spelling of 249158948 in words is "two hundred forty-nine million, one hundred fifty-eight thousand, nine hundred forty-eight".