1499359221 has 16 divisors (see below), whose sum is σ = 2242036800. Its totient is φ = 990229104.

The previous prime is 1499359219. The next prime is 1499359229. The reversal of 1499359221 is 1229539941.

It is not a de Polignac number, because 1499359221 - 2¹ = 1499359219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1499359229) 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, 256606 + ... + 262383.

It is an arithmetic number, because the mean of its divisors is an integer number (140127300).

Almost surely, 2^1499359221 is an apocalyptic number.

It is an amenable number.

1499359221 is a deficient number, since it is larger than the sum of its proper divisors (742677579).

1499359221 is a wasteful number, since it uses less digits than its factorization.

1499359221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519105 (or 519099 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 1499359221 is about 38721.5601571011. The cubic root of 1499359221 is about 1144.5512173710.

The spelling of 1499359221 in words is "one billion, four hundred ninety-nine million, three hundred fifty-nine thousand, two hundred twenty-one".