9139020248 has 8 divisors (see below), whose sum is σ = 17135662980. Its totient is φ = 4569510120.

The previous prime is 9139020221. The next prime is 9139020277. The reversal of 9139020248 is 8420209319.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571188758 + ... + 571188773.

Almost surely, 2^9139020248 is an apocalyptic number.

It is an amenable number.

9139020248 is a deficient number, since it is larger than the sum of its proper divisors (7996642732).

9139020248 is a wasteful number, since it uses less digits than its factorization.

9139020248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142377537 (or 1142377533 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 9139020248 is about 95598.2230378787. The cubic root of 9139020248 is about 2090.7392856368.

The spelling of 9139020248 in words is "nine billion, one hundred thirty-nine million, twenty thousand, two hundred forty-eight".