851149022 has 4 divisors (see below), whose sum is σ = 1276723536. Its totient is φ = 425574510.

The previous prime is 851149001. The next prime is 851149037. The reversal of 851149022 is 220941158.

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

It is a self number, because there is not a number n which added to its sum of digits gives 851149022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212787254 + ... + 212787257.

It is an arithmetic number, because the mean of its divisors is an integer number (319180884).

Almost surely, 2^851149022 is an apocalyptic number.

851149022 is a deficient number, since it is larger than the sum of its proper divisors (425574514).

851149022 is a wasteful number, since it uses less digits than its factorization.

851149022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425574513.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 851149022 is about 29174.4583840043. The cubic root of 851149022 is about 947.6948810951.

The spelling of 851149022 in words is "eight hundred fifty-one million, one hundred forty-nine thousand, twenty-two".