914521999 has 4 divisors (see below), whose sum is σ = 916146936. Its totient is φ = 912897064.

The previous prime is 914521981. The next prime is 914522009. The reversal of 914521999 is 999125419.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 914521999 - 2⁵ = 914521967 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 (914521939) 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, 811624 + ... + 812749.

It is an arithmetic number, because the mean of its divisors is an integer number (229036734).

Almost surely, 2^914521999 is an apocalyptic number.

914521999 is a deficient number, since it is larger than the sum of its proper divisors (1624937).

914521999 is a wasteful number, since it uses less digits than its factorization.

914521999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624936.

The product of its digits is 262440, while the sum is 49.

The square root of 914521999 is about 30241.0647795345. The cubic root of 914521999 is about 970.6546043733.

The spelling of 914521999 in words is "nine hundred fourteen million, five hundred twenty-one thousand, nine hundred ninety-nine".