9139997914 has 4 divisors (see below), whose sum is σ = 13709996874. Its totient is φ = 4569998956.

The previous prime is 9139997869. The next prime is 9139997953. The reversal of 9139997914 is 4197999319.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8980405225 + 159592689 = 94765^2 + 12633^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2284999477 + ... + 2284999480.

Almost surely, 2^9139997914 is an apocalyptic number.

9139997914 is a deficient number, since it is larger than the sum of its proper divisors (4569998960).

9139997914 is a wasteful number, since it uses less digits than its factorization.

9139997914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569998959.

The product of its digits is 4960116, while the sum is 61.

The square root of 9139997914 is about 95603.3363120765. The cubic root of 9139997914 is about 2090.8138367292.

The spelling of 9139997914 in words is "nine billion, one hundred thirty-nine million, nine hundred ninety-seven thousand, nine hundred fourteen".