154980489 has 16 divisors (see below), whose sum is σ = 209531840. Its totient is φ = 101882880.

The previous prime is 154980487. The next prime is 154980503. The reversal of 154980489 is 984089451.

It is not a de Polignac number, because 154980489 - 2¹ = 154980487 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (154980481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95517 + ... + 97125.

It is an arithmetic number, because the mean of its divisors is an integer number (13095740).

Almost surely, 2^154980489 is an apocalyptic number.

It is an amenable number.

154980489 is a deficient number, since it is larger than the sum of its proper divisors (54551351).

154980489 is a wasteful number, since it uses less digits than its factorization.

154980489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 154980489 is about 12449.1159927121. The cubic root of 154980489 is about 537.1459954190.

The spelling of 154980489 in words is "one hundred fifty-four million, nine hundred eighty thousand, four hundred eighty-nine".