16457099 has 4 divisors (see below), whose sum is σ = 16480464. Its totient is φ = 16433736.

The previous prime is 16457087. The next prime is 16457131. The reversal of 16457099 is 99075461.

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 16457099 - 2¹⁶ = 16391563 is a prime.

It is a super-2 number, since 2×16457099² = 541672214991602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16457039) 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, 10592 + ... + 12045.

It is an arithmetic number, because the mean of its divisors is an integer number (4120116).

Almost surely, 2^16457099 is an apocalyptic number.

16457099 is a deficient number, since it is larger than the sum of its proper divisors (23365).

16457099 is an equidigital number, since it uses as much as digits as its factorization.

16457099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23364.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 16457099 is about 4056.7350172275. The cubic root of 16457099 is about 254.3613339554.

The spelling of 16457099 in words is "sixteen million, four hundred fifty-seven thousand, ninety-nine".