1390137415 has 16 divisors (see below), whose sum is σ = 1682205408. Its totient is φ = 1102790656.

The previous prime is 1390137317. The next prime is 1390137443. The reversal of 1390137415 is 5147310931.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1390137415 - 2²¹ = 1388040263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297084 + ... + 301726.

It is an arithmetic number, because the mean of its divisors is an integer number (105137838).

Almost surely, 2^1390137415 is an apocalyptic number.

1390137415 is a deficient number, since it is larger than the sum of its proper divisors (292067993).

1390137415 is a wasteful number, since it uses less digits than its factorization.

1390137415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 1390137415 is about 37284.5465977528. The cubic root of 1390137415 is about 1116.0558051491.

The spelling of 1390137415 in words is "one billion, three hundred ninety million, one hundred thirty-seven thousand, four hundred fifteen".