857590149 has 8 divisors (see below), whose sum is σ = 1231411552. Its totient is φ = 527747760.

The previous prime is 857590147. The next prime is 857590159. The reversal of 857590149 is 941095758.

857590149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 857590149 - 2¹ = 857590147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 857590098 and 857590107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857590141) 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, 10994707 + ... + 10994784.

It is an arithmetic number, because the mean of its divisors is an integer number (153926444).

Almost surely, 2^857590149 is an apocalyptic number.

It is an amenable number.

857590149 is a deficient number, since it is larger than the sum of its proper divisors (373821403).

857590149 is a wasteful number, since it uses less digits than its factorization.

857590149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21989507.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 857590149 is about 29284.6401548662. The cubic root of 857590149 is about 950.0794574353.

The spelling of 857590149 in words is "eight hundred fifty-seven million, five hundred ninety thousand, one hundred forty-nine".