16545474 has 24 divisors (see below), whose sum is σ = 39107952. Its totient is φ = 5013720.

The previous prime is 16545467. The next prime is 16545481. The reversal of 16545474 is 47454561.

It is an interprime number because it is at equal distance from previous prime (16545467) and next prime (16545481).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41584 + ... + 41979.

It is an arithmetic number, because the mean of its divisors is an integer number (1629498).

Almost surely, 2^16545474 is an apocalyptic number.

16545474 is an abundant number, since it is smaller than the sum of its proper divisors (22562478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16545474 is a wasteful number, since it uses less digits than its factorization.

16545474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83582 (or 83579 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 16545474 is about 4067.6128134325. The cubic root of 16545474 is about 254.8158301092.

It can be divided in two parts, 16 and 545474, that added together give a triangular number (545490 = T₁₀₄₄).

The spelling of 16545474 in words is "sixteen million, five hundred forty-five thousand, four hundred seventy-four".