154243554 has 16 divisors (see below), whose sum is σ = 309495648. Its totient is φ = 51246432.

The previous prime is 154243553. The next prime is 154243559. The reversal of 154243554 is 455342451.

It is not an unprimeable number, because it can be changed into a prime (154243553) 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, 40027 + ... + 43710.

It is an arithmetic number, because the mean of its divisors is an integer number (19343478).

Almost surely, 2^154243554 is an apocalyptic number.

154243554 is an abundant number, since it is smaller than the sum of its proper divisors (155252094).

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

154243554 is a wasteful number, since it uses less digits than its factorization.

154243554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84049.

The product of its digits is 48000, while the sum is 33.

The square root of 154243554 is about 12419.4828394744. The cubic root of 154243554 is about 536.2932627927.

The spelling of 154243554 in words is "one hundred fifty-four million, two hundred forty-three thousand, five hundred fifty-four".