851401137 has 8 divisors (see below), whose sum is σ = 1135348704. Its totient is φ = 567527168.

The previous prime is 851401129. The next prime is 851401141. The reversal of 851401137 is 731104158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 851401137 - 2³ = 851401129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (851401147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20113 + ... + 45905.

It is an arithmetic number, because the mean of its divisors is an integer number (141918588).

Almost surely, 2^851401137 is an apocalyptic number.

It is an amenable number.

851401137 is a deficient number, since it is larger than the sum of its proper divisors (283947567).

851401137 is a wasteful number, since it uses less digits than its factorization.

851401137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36799.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 851401137 is about 29178.7788812349. The cubic root of 851401137 is about 947.7884426619.

The spelling of 851401137 in words is "eight hundred fifty-one million, four hundred one thousand, one hundred thirty-seven".