16420154 has 4 divisors (see below), whose sum is σ = 24630234. Its totient is φ = 8210076.

The previous prime is 16420153. The next prime is 16420171. The reversal of 16420154 is 45102461.

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

It can be written as a sum of positive squares in only one way, i.e., 15389929 + 1030225 = 3923^2 + 1015^2 .

It is not an unprimeable number, because it can be changed into a prime (16420153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4105037 + ... + 4105040.

Almost surely, 2^16420154 is an apocalyptic number.

16420154 is a deficient number, since it is larger than the sum of its proper divisors (8210080).

16420154 is an equidigital number, since it uses as much as digits as its factorization.

16420154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8210079.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 16420154 is about 4052.1789200380. The cubic root of 16420154 is about 254.1708503955.

The spelling of 16420154 in words is "sixteen million, four hundred twenty thousand, one hundred fifty-four".