1439130957 has 16 divisors (see below), whose sum is σ = 2094361920. Its totient is φ = 871750400.

The previous prime is 1439130943. The next prime is 1439130967. The reversal of 1439130957 is 7590319341.

It is a cyclic number.

It is not a de Polignac number, because 1439130957 - 2¹⁰ = 1439129933 is a prime.

It is a super-2 number, since 2×1439130957² = 4142195822791471698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1439130967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60469 + ... + 80837.

It is an arithmetic number, because the mean of its divisors is an integer number (130897620).

Almost surely, 2^1439130957 is an apocalyptic number.

It is an amenable number.

1439130957 is a deficient number, since it is larger than the sum of its proper divisors (655230963).

1439130957 is a wasteful number, since it uses less digits than its factorization.

1439130957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22524.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 1439130957 is about 37935.8795469408. The cubic root of 1439130957 is about 1129.0160220618.

The spelling of 1439130957 in words is "one billion, four hundred thirty-nine million, one hundred thirty thousand, nine hundred fifty-seven".