1514988947 has 4 divisors (see below), whose sum is σ = 1515169776. Its totient is φ = 1514808120.

The previous prime is 1514988911. The next prime is 1514988953. The reversal of 1514988947 is 7498894151.

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

It is a cyclic number.

It is not a de Polignac number, because 1514988947 - 2¹⁰ = 1514987923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1514988892 and 1514988901.

It is not an unprimeable number, because it can be changed into a prime (1514988967) 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, 77204 + ... + 94817.

It is an arithmetic number, because the mean of its divisors is an integer number (378792444).

Almost surely, 2^1514988947 is an apocalyptic number.

1514988947 is a deficient number, since it is larger than the sum of its proper divisors (180829).

1514988947 is an equidigital number, since it uses as much as digits as its factorization.

1514988947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180828.

The product of its digits is 2903040, while the sum is 56.

The square root of 1514988947 is about 38922.8589263430. The cubic root of 1514988947 is about 1148.5145147521.

The spelling of 1514988947 in words is "one billion, five hundred fourteen million, nine hundred eighty-eight thousand, nine hundred forty-seven".