1381516 has 6 divisors (see below), whose sum is σ = 2417660. Its totient is φ = 690756.

The previous prime is 1381507. The next prime is 1381517. The reversal of 1381516 is 6151831.

It is not an unprimeable number, because it can be changed into a prime (1381517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172686 + ... + 172693.

2^1381516 is an apocalyptic number.

It is an amenable number.

1381516 is a deficient number, since it is larger than the sum of its proper divisors (1036144).

1381516 is a wasteful number, since it uses less digits than its factorization.

1381516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345383 (or 345381 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

The square root of 1381516 is about 1175.3790877840. The cubic root of 1381516 is about 111.3743817784.

It can be divided in two parts, 13815 and 16, that added together give a palindrome (13831).

The spelling of 1381516 in words is "one million, three hundred eighty-one thousand, five hundred sixteen".