1497715994 has 8 divisors (see below), whose sum is σ = 2258986548. Its totient is φ = 744720480.

The previous prime is 1497715951. The next prime is 1497716023. The reversal of 1497715994 is 4995177941.

It can be written as a sum of positive squares in 2 ways, for example, as 997612225 + 500103769 = 31585^2 + 22363^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2068307 + ... + 2069030.

Almost surely, 2^1497715994 is an apocalyptic number.

1497715994 is a deficient number, since it is larger than the sum of its proper divisors (761270554).

1497715994 is a wasteful number, since it uses less digits than its factorization.

1497715994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137520.

The product of its digits is 2857680, while the sum is 56.

The square root of 1497715994 is about 38700.3358383361. The cubic root of 1497715994 is about 1144.1329398096.

The spelling of 1497715994 in words is "one billion, four hundred ninety-seven million, seven hundred fifteen thousand, nine hundred ninety-four".