16145145 has 24 divisors (see below), whose sum is σ = 28080000. Its totient is φ = 8581536.

The previous prime is 16145137. The next prime is 16145177. The reversal of 16145145 is 54154161.

16145145 is a `hidden beast` number, since 1 + 614 + 5 + 1 + 45 = 666.

It is not a de Polignac number, because 16145145 - 2³ = 16145137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22096 + ... + 22814.

It is an arithmetic number, because the mean of its divisors is an integer number (1170000).

Almost surely, 2^16145145 is an apocalyptic number.

16145145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16145145 is a deficient number, since it is larger than the sum of its proper divisors (11934855).

16145145 is a wasteful number, since it uses less digits than its factorization.

16145145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229 (or 1226 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 16145145 is about 4018.1021639575. The cubic root of 16145145 is about 252.7438809579.

It can be divided in two parts, 16145 and 145, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 16145145 in words is "sixteen million, one hundred forty-five thousand, one hundred forty-five".