16161452 has 12 divisors (see below), whose sum is σ = 29047200. Its totient is φ = 7862256.

The previous prime is 16161437. The next prime is 16161463. The reversal of 16161452 is 25416161.

It is a super-2 number, since 2×16161452² = 522385061496608, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54452 + ... + 54747.

It is an arithmetic number, because the mean of its divisors is an integer number (2420600).

Almost surely, 2^16161452 is an apocalyptic number.

It is an amenable number.

16161452 is a deficient number, since it is larger than the sum of its proper divisors (12885748).

16161452 is a wasteful number, since it uses less digits than its factorization.

16161452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109240 (or 109238 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 16161452 is about 4020.1308436418. The cubic root of 16161452 is about 252.8289448712.

It can be divided in two parts, 1616 and 1452, that multiplied together give a palindrome (2346432).

The spelling of 16161452 in words is "sixteen million, one hundred sixty-one thousand, four hundred fifty-two".