154621842 has 16 divisors (see below), whose sum is σ = 309533952. Its totient is φ = 51492240.

The previous prime is 154621813. The next prime is 154621843. The reversal of 154621842 is 248126451.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (154621843) 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, 4834 + ... + 18237.

It is an arithmetic number, because the mean of its divisors is an integer number (19345872).

Almost surely, 2^154621842 is an apocalyptic number.

154621842 is an abundant number, since it is smaller than the sum of its proper divisors (154912110).

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

154621842 is a wasteful number, since it uses less digits than its factorization.

154621842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24193.

The product of its digits is 15360, while the sum is 33.

The square root of 154621842 is about 12434.7031327652. The cubic root of 154621842 is about 536.7313311910.

The spelling of 154621842 in words is "one hundred fifty-four million, six hundred twenty-one thousand, eight hundred forty-two".