291454872134 has 8 divisors (see below), whose sum is σ = 437778739200. Its totient is φ = 145528625736.

The previous prime is 291454872127. The next prime is 291454872161. The reversal of 291454872134 is 431278454192.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99403334 + ... + 99406265.

It is an arithmetic number, because the mean of its divisors is an integer number (54722342400).

Almost surely, 2^291454872134 is an apocalyptic number.

291454872134 is a deficient number, since it is larger than the sum of its proper divisors (146323867066).

291454872134 is a wasteful number, since it uses less digits than its factorization.

291454872134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198810334.

The product of its digits is 1935360, while the sum is 50.

The spelling of 291454872134 in words is "two hundred ninety-one billion, four hundred fifty-four million, eight hundred seventy-two thousand, one hundred thirty-four".