1390611371 has 4 divisors (see below), whose sum is σ = 1395781200. Its totient is φ = 1385441544.

The previous prime is 1390611319. The next prime is 1390611421. The reversal of 1390611371 is 1731160931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1390611371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1390611301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2584511 + ... + 2585048.

It is an arithmetic number, because the mean of its divisors is an integer number (348945300).

Almost surely, 2^1390611371 is an apocalyptic number.

1390611371 is a deficient number, since it is larger than the sum of its proper divisors (5169829).

1390611371 is an equidigital number, since it uses as much as digits as its factorization.

1390611371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5169828.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 1390611371 is about 37290.9019869458. The cubic root of 1390611371 is about 1116.1826274416.

The spelling of 1390611371 in words is "one billion, three hundred ninety million, six hundred eleven thousand, three hundred seventy-one".