16457146 has 4 divisors (see below), whose sum is σ = 24685722. Its totient is φ = 8228572.

The previous prime is 16457131. The next prime is 16457153. The reversal of 16457146 is 64175461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64175461 = 7 ⋅9167923.

It can be written as a sum of positive squares in only one way, i.e., 10400625 + 6056521 = 3225^2 + 2461^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4114285 + ... + 4114288.

Almost surely, 2^16457146 is an apocalyptic number.

16457146 is a deficient number, since it is larger than the sum of its proper divisors (8228576).

16457146 is an equidigital number, since it uses as much as digits as its factorization.

16457146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8228575.

The product of its digits is 20160, while the sum is 34.

The square root of 16457146 is about 4056.7408100592. The cubic root of 16457146 is about 254.3615760996.

The spelling of 16457146 in words is "sixteen million, four hundred fifty-seven thousand, one hundred forty-six".