154689485 has 4 divisors (see below), whose sum is σ = 185627388. Its totient is φ = 123751584.

The previous prime is 154689481. The next prime is 154689503. The reversal of 154689485 is 584986451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103266244 + 51423241 = 10162^2 + 7171^2 .

It is a cyclic number.

It is not a de Polignac number, because 154689485 - 2² = 154689481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154689481) 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, 15468944 + ... + 15468953.

It is an arithmetic number, because the mean of its divisors is an integer number (46406847).

Almost surely, 2^154689485 is an apocalyptic number.

It is an amenable number.

154689485 is a deficient number, since it is larger than the sum of its proper divisors (30937903).

154689485 is an equidigital number, since it uses as much as digits as its factorization.

154689485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30937902.

The product of its digits is 1382400, while the sum is 50.

The square root of 154689485 is about 12437.4227635793. The cubic root of 154689485 is about 536.8095884065.

The spelling of 154689485 in words is "one hundred fifty-four million, six hundred eighty-nine thousand, four hundred eighty-five".