154155454 has 4 divisors (see below), whose sum is σ = 231233184. Its totient is φ = 77077726.

The previous prime is 154155451. The next prime is 154155461. The reversal of 154155454 is 454551451.

154155454 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×154155454² = 47527807995892232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154155451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38538862 + ... + 38538865.

It is an arithmetic number, because the mean of its divisors is an integer number (57808296).

Almost surely, 2^154155454 is an apocalyptic number.

154155454 is a deficient number, since it is larger than the sum of its proper divisors (77077730).

154155454 is an equidigital number, since it uses as much as digits as its factorization.

154155454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77077729.

The product of its digits is 40000, while the sum is 34.

The square root of 154155454 is about 12415.9354863015. The cubic root of 154155454 is about 536.1911376501.

The spelling of 154155454 in words is "one hundred fifty-four million, one hundred fifty-five thousand, four hundred fifty-four".