1494808997 has 16 divisors (see below), whose sum is σ = 1735344000. Its totient is φ = 1272522240.

The previous prime is 1494808967. The next prime is 1494809039. The reversal of 1494808997 is 7998084941.

It is not a de Polignac number, because 1494808997 - 2¹⁸ = 1494546853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1494808967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17129 + ... + 57297.

It is an arithmetic number, because the mean of its divisors is an integer number (108459000).

Almost surely, 2^1494808997 is an apocalyptic number.

1494808997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1494808997 is a deficient number, since it is larger than the sum of its proper divisors (240535003).

1494808997 is a wasteful number, since it uses less digits than its factorization.

1494808997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40396.

The product of its (nonzero) digits is 5225472, while the sum is 59.

The square root of 1494808997 is about 38662.7598213061. The cubic root of 1494808997 is about 1143.3922241187.

The spelling of 1494808997 in words is "one billion, four hundred ninety-four million, eight hundred eight thousand, nine hundred ninety-seven".