851122802 has 4 divisors (see below), whose sum is σ = 1276684206. Its totient is φ = 425561400.

The previous prime is 851122787. The next prime is 851122829. The reversal of 851122802 is 208221158.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 850947241 + 175561 = 29171^2 + 419^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212780699 + ... + 212780702.

Almost surely, 2^851122802 is an apocalyptic number.

851122802 is a deficient number, since it is larger than the sum of its proper divisors (425561404).

851122802 is a wasteful number, since it uses less digits than its factorization.

851122802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425561403.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 851122802 is about 29174.0090148749. The cubic root of 851122802 is about 947.6851496167.

It can be divided in two parts, 8511 and 22802, that added together give a palindrome (31313).

The spelling of 851122802 in words is "eight hundred fifty-one million, one hundred twenty-two thousand, eight hundred two".