248639194 has 4 divisors (see below), whose sum is σ = 372958794. Its totient is φ = 124319596.

The previous prime is 248639123. The next prime is 248639221. The reversal of 248639194 is 491936842.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 491936842 = 2 ⋅245968421.

It can be written as a sum of positive squares in only one way, i.e., 156575169 + 92064025 = 12513^2 + 9595^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62159797 + ... + 62159800.

Almost surely, 2^248639194 is an apocalyptic number.

248639194 is a deficient number, since it is larger than the sum of its proper divisors (124319600).

248639194 is a wasteful number, since it uses less digits than its factorization.

248639194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124319599.

The product of its digits is 373248, while the sum is 46.

The square root of 248639194 is about 15768.2971179516. The cubic root of 248639194 is about 628.8154393588.

The spelling of 248639194 in words is "two hundred forty-eight million, six hundred thirty-nine thousand, one hundred ninety-four".