891543134 has 16 divisors (see below), whose sum is σ = 1344893760. Its totient is φ = 443251200.

The previous prime is 891543119. The next prime is 891543151. The reversal of 891543134 is 431345198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573302 + ... + 574854.

It is an arithmetic number, because the mean of its divisors is an integer number (84055860).

Almost surely, 2^891543134 is an apocalyptic number.

891543134 is a deficient number, since it is larger than the sum of its proper divisors (453350626).

891543134 is a wasteful number, since it uses less digits than its factorization.

891543134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995.

The product of its digits is 51840, while the sum is 38.

The square root of 891543134 is about 29858.7195639733. The cubic root of 891543134 is about 962.4557835200.

The spelling of 891543134 in words is "eight hundred ninety-one million, five hundred forty-three thousand, one hundred thirty-four".