851380132 has 6 divisors (see below), whose sum is σ = 1489915238. Its totient is φ = 425690064.

The previous prime is 851380109. The next prime is 851380151. The reversal of 851380132 is 231083158.

It can be written as a sum of positive squares in only one way, i.e., 830822976 + 20557156 = 28824^2 + 4534^2 .

It is a junction number, because it is equal to n+sod(n) for n = 851380094 and 851380103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106422513 + ... + 106422520.

Almost surely, 2^851380132 is an apocalyptic number.

It is an amenable number.

851380132 is a deficient number, since it is larger than the sum of its proper divisors (638535106).

851380132 is a wasteful number, since it uses less digits than its factorization.

851380132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212845037 (or 212845035 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 851380132 is about 29178.4189427734. The cubic root of 851380132 is about 947.7806482709.

The spelling of 851380132 in words is "eight hundred fifty-one million, three hundred eighty thousand, one hundred thirty-two".