850401137 has 2 divisors, whose sum is σ = 850401138. Its totient is φ = 850401136.

The previous prime is 850401121. The next prime is 850401157. The reversal of 850401137 is 731104058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 515108416 + 335292721 = 22696^2 + 18311^2 .

It is a cyclic number.

It is not a de Polignac number, because 850401137 - 2⁴ = 850401121 is a prime.

It is not a weakly prime, because it can be changed into another prime (850401157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425200568 + 425200569.

It is an arithmetic number, because the mean of its divisors is an integer number (425200569).

Almost surely, 2^850401137 is an apocalyptic number.

It is an amenable number.

850401137 is a deficient number, since it is larger than the sum of its proper divisors (1).

850401137 is an equidigital number, since it uses as much as digits as its factorization.

850401137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 850401137 is about 29161.6381055660. The cubic root of 850401137 is about 947.4172272172.

The spelling of 850401137 in words is "eight hundred fifty million, four hundred one thousand, one hundred thirty-seven".