1495376681 has 4 divisors (see below), whose sum is σ = 1509352272. Its totient is φ = 1481401092.

The previous prime is 1495376669. The next prime is 1495376689. The reversal of 1495376681 is 1866735941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1495376681 is a prime.

It is a super-2 number, since 2×1495376681² = 4472302836157151522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1495376689) 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, 6987635 + ... + 6987848.

It is an arithmetic number, because the mean of its divisors is an integer number (377338068).

Almost surely, 2^1495376681 is an apocalyptic number.

It is an amenable number.

1495376681 is a deficient number, since it is larger than the sum of its proper divisors (13975591).

1495376681 is a wasteful number, since it uses less digits than its factorization.

1495376681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13975590.

The product of its digits is 1088640, while the sum is 50.

The square root of 1495376681 is about 38670.1006075754. The cubic root of 1495376681 is about 1143.5369479201.

The spelling of 1495376681 in words is "one billion, four hundred ninety-five million, three hundred seventy-six thousand, six hundred eighty-one".