851222134 has 16 divisors (see below), whose sum is σ = 1522683648. Its totient is φ = 348948072.

The previous prime is 851222117. The next prime is 851222171. The reversal of 851222134 is 431222158.

It is a super-3 number, since 3×851222134³ (a number of 28 digits) contains 333 as substring.

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, 1321452 + ... + 1322095.

It is an arithmetic number, because the mean of its divisors is an integer number (95167728).

Almost surely, 2^851222134 is an apocalyptic number.

851222134 is a deficient number, since it is larger than the sum of its proper divisors (671461514).

851222134 is a wasteful number, since it uses less digits than its factorization.

851222134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643579.

The product of its digits is 3840, while the sum is 28.

The square root of 851222134 is about 29175.7113709332. The cubic root of 851222134 is about 947.7220153503.

The spelling of 851222134 in words is "eight hundred fifty-one million, two hundred twenty-two thousand, one hundred thirty-four".