154215719142 has 16 divisors (see below), whose sum is σ = 308446535280. Its totient is φ = 51402723552.

The previous prime is 154215719107. The next prime is 154215719149. The reversal of 154215719142 is 241917512451.

It is a junction number, because it is equal to n+sod(n) for n = 154215719094 and 154215719103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154215719149) 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, 494017 + ... + 743292.

It is an arithmetic number, because the mean of its divisors is an integer number (19277908455).

Almost surely, 2^154215719142 is an apocalyptic number.

154215719142 is an abundant number, since it is smaller than the sum of its proper divisors (154230816138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154215719142 is a wasteful number, since it uses less digits than its factorization.

154215719142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258087.

The product of its digits is 100800, while the sum is 42.

The spelling of 154215719142 in words is "one hundred fifty-four billion, two hundred fifteen million, seven hundred nineteen thousand, one hundred forty-two".