154134233551 has 4 divisors (see below), whose sum is σ = 154390697104. Its totient is φ = 153877770000.

The previous prime is 154134233527. The next prime is 154134233573. The reversal of 154134233551 is 155332431451.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154134233551 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 154134233551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154134233521) 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, 128230875 + ... + 128232076.

It is an arithmetic number, because the mean of its divisors is an integer number (38597674276).

Almost surely, 2^154134233551 is an apocalyptic number.

154134233551 is a deficient number, since it is larger than the sum of its proper divisors (256463553).

154134233551 is an equidigital number, since it uses as much as digits as its factorization.

154134233551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256463552.

The product of its digits is 108000, while the sum is 37.

The spelling of 154134233551 in words is "one hundred fifty-four billion, one hundred thirty-four million, two hundred thirty-three thousand, five hundred fifty-one".