16145461 has 4 divisors (see below), whose sum is σ = 17095212. Its totient is φ = 15195712.

The previous prime is 16145453. The next prime is 16145477. The reversal of 16145461 is 16454161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16454161 = 41 ⋅401321.

It can be written as a sum of positive squares in 2 ways, for example, as 8444836 + 7700625 = 2906^2 + 2775^2 .

It is a cyclic number.

It is not a de Polignac number, because 16145461 - 2³ = 16145453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16145411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474850 + ... + 474883.

It is an arithmetic number, because the mean of its divisors is an integer number (4273803).

Almost surely, 2^16145461 is an apocalyptic number.

It is an amenable number.

16145461 is a deficient number, since it is larger than the sum of its proper divisors (949751).

16145461 is an equidigital number, since it uses as much as digits as its factorization.

16145461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949750.

The product of its digits is 2880, while the sum is 28.

The square root of 16145461 is about 4018.1414858116. The cubic root of 16145461 is about 252.7455298859.

The spelling of 16145461 in words is "sixteen million, one hundred forty-five thousand, four hundred sixty-one".