154221453 has 12 divisors (see below), whose sum is σ = 224466528. Its totient is φ = 102028680.

The previous prime is 154221421. The next prime is 154221503. The reversal of 154221453 is 354122451.

154221453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 154221453 - 2⁵ = 154221421 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154221413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64225 + ... + 66582.

It is an arithmetic number, because the mean of its divisors is an integer number (18705544).

Almost surely, 2^154221453 is an apocalyptic number.

It is an amenable number.

154221453 is a deficient number, since it is larger than the sum of its proper divisors (70245075).

154221453 is a wasteful number, since it uses less digits than its factorization.

154221453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130944 (or 130941 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 154221453 is about 12418.5930362501. The cubic root of 154221453 is about 536.2676470630.

The spelling of 154221453 in words is "one hundred fifty-four million, two hundred twenty-one thousand, four hundred fifty-three".