16254139 has 16 divisors (see below), whose sum is σ = 18910080. Its totient is φ = 13815360.

The previous prime is 16254131. The next prime is 16254143. The reversal of 16254139 is 93145261.

16254139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16254139 - 2³ = 16254131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16254139.

It is not an unprimeable number, because it can be changed into a prime (16254131) 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, 16879 + ... + 17815.

It is an arithmetic number, because the mean of its divisors is an integer number (1181880).

Almost surely, 2^16254139 is an apocalyptic number.

16254139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16254139 is a deficient number, since it is larger than the sum of its proper divisors (2655941).

16254139 is a wasteful number, since it uses less digits than its factorization.

16254139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050.

The product of its digits is 6480, while the sum is 31.

The square root of 16254139 is about 4031.6422212295. The cubic root of 16254139 is about 253.3113540873.

The spelling of 16254139 in words is "sixteen million, two hundred fifty-four thousand, one hundred thirty-nine".