154434869253 has 12 divisors (see below), whose sum is σ = 254940101728. Its totient is φ = 88248496680.

The previous prime is 154434869243. The next prime is 154434869261. The reversal of 154434869253 is 352968434451.

It is a happy number.

154434869253 is a `hidden beast` number, since 1 + 5 + 44 + 348 + 6 + 9 + 253 = 666.

It is not a de Polignac number, because 154434869253 - 2¹⁷ = 154434738181 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 154434869253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154434869243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1225673503 + ... + 1225673628.

Almost surely, 2^154434869253 is an apocalyptic number.

It is an amenable number.

154434869253 is a deficient number, since it is larger than the sum of its proper divisors (100505232475).

154434869253 is a wasteful number, since it uses less digits than its factorization.

154434869253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451347144 (or 2451347141 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 54.

The spelling of 154434869253 in words is "one hundred fifty-four billion, four hundred thirty-four million, eight hundred sixty-nine thousand, two hundred fifty-three".