154134020651243 has 8 divisors (see below), whose sum is σ = 154619468707968. Its totient is φ = 153648848345344.

The previous prime is 154134020651173. The next prime is 154134020651249. The reversal of 154134020651243 is 342156020431451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 154134020651243 - 2¹⁴ = 154134020634859 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 154134020651243.

It is not an unprimeable number, because it can be changed into a prime (154134020651249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67817996 + ... + 70053897.

It is an arithmetic number, because the mean of its divisors is an integer number (19327433588496).

Almost surely, 2^{154134020651243} is an apocalyptic number.

154134020651243 is a deficient number, since it is larger than the sum of its proper divisors (485448056725).

154134020651243 is a wasteful number, since it uses less digits than its factorization.

154134020651243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137875413.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 154134020651243 in words is "one hundred fifty-four trillion, one hundred thirty-four billion, twenty million, six hundred fifty-one thousand, two hundred forty-three".