851241074 has 4 divisors (see below), whose sum is σ = 1276861614. Its totient is φ = 425620536.

The previous prime is 851241073. The next prime is 851241107. The reversal of 851241074 is 470142158.

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., 844774225 + 6466849 = 29065^2 + 2543^2 .

It is a super-2 number, since 2×851241074² = 1449222732129346952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 851241074.

It is not an unprimeable number, because it can be changed into a prime (851241071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212810267 + ... + 212810270.

Almost surely, 2^851241074 is an apocalyptic number.

851241074 is a deficient number, since it is larger than the sum of its proper divisors (425620540).

851241074 is a wasteful number, since it uses less digits than its factorization.

851241074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425620539.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 851241074 is about 29176.0359541868. The cubic root of 851241074 is about 947.7290443505.

The spelling of 851241074 in words is "eight hundred fifty-one million, two hundred forty-one thousand, seventy-four".