1390059631 has 8 divisors (see below), whose sum is σ = 1408999760. Its totient is φ = 1371247488.

The previous prime is 1390059571. The next prime is 1390059637. The reversal of 1390059631 is 1369500931.

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 1390059631 - 2¹¹ = 1390057583 is a prime.

It is a super-2 number, since 2×1390059631² = 3864531555471712322, which contains 22 as substring.

It is a Duffinian number.

1390059631 is a modest number, since divided by 59631 gives 1390 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390059637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10026 + ... + 53671.

It is an arithmetic number, because the mean of its divisors is an integer number (176124970).

Almost surely, 2^1390059631 is an apocalyptic number.

1390059631 is a deficient number, since it is larger than the sum of its proper divisors (18940129).

1390059631 is a wasteful number, since it uses less digits than its factorization.

1390059631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63993.

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 1390059631 is about 37283.5034700335. The cubic root of 1390059631 is about 1116.0349887648.

The spelling of 1390059631 in words is "one billion, three hundred ninety million, fifty-nine thousand, six hundred thirty-one".