154136052554 has 12 divisors (see below), whose sum is σ = 254133409362. Its totient is φ = 70061841960.

The previous prime is 154136052541. The next prime is 154136052611. The reversal of 154136052554 is 455250631451.

It can be written as a sum of positive squares in only one way, i.e., 108863703025 + 45272349529 = 329945^2 + 212773^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 318462677 + ... + 318463160.

Almost surely, 2^154136052554 is an apocalyptic number.

154136052554 is a deficient number, since it is larger than the sum of its proper divisors (99997356808).

154136052554 is a wasteful number, since it uses less digits than its factorization.

154136052554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636925861 (or 636925850 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 154136052554 in words is "one hundred fifty-four billion, one hundred thirty-six million, fifty-two thousand, five hundred fifty-four".