16121454 has 16 divisors (see below), whose sum is σ = 32379600. Its totient is φ = 5351040.

The previous prime is 16121453. The next prime is 16121461. The reversal of 16121454 is 45412161.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16121453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4129 + ... + 7020.

It is an arithmetic number, because the mean of its divisors is an integer number (2023725).

Almost surely, 2^16121454 is an apocalyptic number.

16121454 is an abundant number, since it is smaller than the sum of its proper divisors (16258146).

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

16121454 is a wasteful number, since it uses less digits than its factorization.

16121454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11395.

The product of its digits is 960, while the sum is 24.

The square root of 16121454 is about 4015.1530481415. The cubic root of 16121454 is about 252.6201969973.

The spelling of 16121454 in words is "sixteen million, one hundred twenty-one thousand, four hundred fifty-four".