154989474 has 8 divisors (see below), whose sum is σ = 309978960. Its totient is φ = 51663156.

The previous prime is 154989473. The next prime is 154989487. The reversal of 154989474 is 474989451.

It is a sphenic number, since it is the product of 3 distinct primes.

154989474 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (154989473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12915784 + ... + 12915795.

It is an arithmetic number, because the mean of its divisors is an integer number (38747370).

Almost surely, 2^154989474 is an apocalyptic number.

154989474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

154989474 is a wasteful number, since it uses less digits than its factorization.

154989474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25831584.

The product of its digits is 1451520, while the sum is 51.

The square root of 154989474 is about 12449.4768564787. The cubic root of 154989474 is about 537.1563755719.

The spelling of 154989474 in words is "one hundred fifty-four million, nine hundred eighty-nine thousand, four hundred seventy-four".