154421454 has 16 divisors (see below), whose sum is σ = 336919680. Its totient is φ = 46794360.

The previous prime is 154421453. The next prime is 154421483. The reversal of 154421454 is 454124451.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154421453) 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, 1169794 + ... + 1169925.

It is an arithmetic number, because the mean of its divisors is an integer number (21057480).

Almost surely, 2^154421454 is an apocalyptic number.

154421454 is an abundant number, since it is smaller than the sum of its proper divisors (182498226).

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

154421454 is a wasteful number, since it uses less digits than its factorization.

154421454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339735.

The product of its digits is 12800, while the sum is 30.

The square root of 154421454 is about 12426.6429094909. The cubic root of 154421454 is about 536.4993652256.

The spelling of 154421454 in words is "one hundred fifty-four million, four hundred twenty-one thousand, four hundred fifty-four".