1339142690 has 8 divisors (see below), whose sum is σ = 2410456860. Its totient is φ = 535657072.

The previous prime is 1339142671. The next prime is 1339142711. The reversal of 1339142690 is 962419331.

It can be written as a sum of positive squares in 2 ways, for example, as 1313265121 + 25877569 = 36239^2 + 5087^2 .

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

It is a super-2 number, since 2×1339142690² = 3586606288360872200, which contains 22 as substring.

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, 66957125 + ... + 66957144.

Almost surely, 2^1339142690 is an apocalyptic number.

1339142690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1339142690 is a deficient number, since it is larger than the sum of its proper divisors (1071314170).

1339142690 is a wasteful number, since it uses less digits than its factorization.

1339142690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133914276.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 1339142690 is about 36594.2985996453. The cubic root of 1339142690 is about 1102.2386064181.

The spelling of 1339142690 in words is "one billion, three hundred thirty-nine million, one hundred forty-two thousand, six hundred ninety".