1490139957 has 8 divisors (see below), whose sum is σ = 2035313280. Its totient is φ = 969196640.

The previous prime is 1490139953. The next prime is 1490139967. The reversal of 1490139957 is 7599310941.

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

It is a cyclic number.

It is not a de Polignac number, because 1490139957 - 2² = 1490139953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490139953) 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 7 ways as a sum of consecutive naturals, for example, 6057357 + ... + 6057602.

It is an arithmetic number, because the mean of its divisors is an integer number (254414160).

Almost surely, 2^1490139957 is an apocalyptic number.

It is an amenable number.

1490139957 is a deficient number, since it is larger than the sum of its proper divisors (545173323).

1490139957 is a wasteful number, since it uses less digits than its factorization.

1490139957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12115003.

The product of its (nonzero) digits is 306180, while the sum is 48.

The square root of 1490139957 is about 38602.3309788412. The cubic root of 1490139957 is about 1142.2005195765.

The spelling of 1490139957 in words is "one billion, four hundred ninety million, one hundred thirty-nine thousand, nine hundred fifty-seven".