1490564899 has 4 divisors (see below), whose sum is σ = 1490658840. Its totient is φ = 1490470960.

The previous prime is 1490564897. The next prime is 1490564903. The reversal of 1490564899 is 9984650941.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1490564899 - 2¹ = 1490564897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1490564897) 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, 16642 + ... + 57079.

It is an arithmetic number, because the mean of its divisors is an integer number (372664710).

Almost surely, 2^1490564899 is an apocalyptic number.

1490564899 is a deficient number, since it is larger than the sum of its proper divisors (93941).

1490564899 is an equidigital number, since it uses as much as digits as its factorization.

1490564899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93940.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 1490564899 is about 38607.8346841674. The cubic root of 1490564899 is about 1142.3090827221.

The spelling of 1490564899 in words is "one billion, four hundred ninety million, five hundred sixty-four thousand, eight hundred ninety-nine".