1390580231 has 4 divisors (see below), whose sum is σ = 1424496864. Its totient is φ = 1356663600.

The previous prime is 1390580203. The next prime is 1390580267. The reversal of 1390580231 is 1320850931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1320850931 = 67 ⋅19714193.

It is a cyclic number.

It is not a de Polignac number, because 1390580231 - 2¹⁴ = 1390563847 is a prime.

It is a super-2 number, since 2×1390580231² = 3867426757696026722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390580281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16958255 + ... + 16958336.

It is an arithmetic number, because the mean of its divisors is an integer number (356124216).

Almost surely, 2^1390580231 is an apocalyptic number.

1390580231 is a deficient number, since it is larger than the sum of its proper divisors (33916633).

1390580231 is an equidigital number, since it uses as much as digits as its factorization.

1390580231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33916632.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1390580231 is about 37290.4844564937. The cubic root of 1390580231 is about 1116.1742958097.

The spelling of 1390580231 in words is "one billion, three hundred ninety million, five hundred eighty thousand, two hundred thirty-one".