1499413987 has 4 divisors (see below), whose sum is σ = 1503153576. Its totient is φ = 1495674400.

The previous prime is 1499413963. The next prime is 1499414027. The reversal of 1499413987 is 7893149941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7893149941 = 503 ⋅15692147.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1499413987 is a prime.

It is a super-2 number, since 2×1499413987² = 4496484608822472338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1499413087) 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, 1869193 + ... + 1869994.

It is an arithmetic number, because the mean of its divisors is an integer number (375788394).

Almost surely, 2^1499413987 is an apocalyptic number.

1499413987 is a deficient number, since it is larger than the sum of its proper divisors (3739589).

1499413987 is an equidigital number, since it uses as much as digits as its factorization.

1499413987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3739588.

The product of its digits is 1959552, while the sum is 55.

The square root of 1499413987 is about 38722.2673277276. The cubic root of 1499413987 is about 1144.5651525970.

The spelling of 1499413987 in words is "one billion, four hundred ninety-nine million, four hundred thirteen thousand, nine hundred eighty-seven".