154649453 has 16 divisors (see below), whose sum is σ = 179552256. Its totient is φ = 130466160.

The previous prime is 154649449. The next prime is 154649497. The reversal of 154649453 is 354946451.

It is a cyclic number.

It is not a de Polignac number, because 154649453 - 2² = 154649449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154649453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154649353) 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, 137150 + ... + 138272.

It is an arithmetic number, because the mean of its divisors is an integer number (11222016).

Almost surely, 2^154649453 is an apocalyptic number.

It is an amenable number.

154649453 is a deficient number, since it is larger than the sum of its proper divisors (24902803).

154649453 is a wasteful number, since it uses less digits than its factorization.

154649453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424.

The product of its digits is 259200, while the sum is 41.

The square root of 154649453 is about 12435.8133228189. The cubic root of 154649453 is about 536.7632775331.

The spelling of 154649453 in words is "one hundred fifty-four million, six hundred forty-nine thousand, four hundred fifty-three".