1239138202 has 8 divisors (see below), whose sum is σ = 1939520736. Its totient is φ = 592631292.

The previous prime is 1239138161. The next prime is 1239138233. The reversal of 1239138202 is 2028319321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13468848 + ... + 13468939.

It is an arithmetic number, because the mean of its divisors is an integer number (242440092).

Almost surely, 2^1239138202 is an apocalyptic number.

1239138202 is a deficient number, since it is larger than the sum of its proper divisors (700382534).

1239138202 is a wasteful number, since it uses less digits than its factorization.

1239138202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26937812.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1239138202 is about 35201.3948871348. The cubic root of 1239138202 is about 1074.0881257974.

The spelling of 1239138202 in words is "one billion, two hundred thirty-nine million, one hundred thirty-eight thousand, two hundred two".