154542254 has 12 divisors (see below), whose sum is σ = 239535432. Its totient is φ = 74777580.

The previous prime is 154542239. The next prime is 154542259. The reversal of 154542254 is 452245451.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 154542254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154542259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38282 + ... + 42125.

It is an arithmetic number, because the mean of its divisors is an integer number (19961286).

Almost surely, 2^154542254 is an apocalyptic number.

154542254 is a deficient number, since it is larger than the sum of its proper divisors (84993178).

154542254 is an equidigital number, since it uses as much as digits as its factorization.

154542254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80471 (or 80440 counting only the distinct ones).

The product of its digits is 32000, while the sum is 32.

The square root of 154542254 is about 12431.5024836099. The cubic root of 154542254 is about 536.6392253928.

The spelling of 154542254 in words is "one hundred fifty-four million, five hundred forty-two thousand, two hundred fifty-four".