870317149 has 16 divisors (see below), whose sum is σ = 950019840. Its totient is φ = 792504000.

The previous prime is 870317141. The next prime is 870317177. The reversal of 870317149 is 941713078.

It is a cyclic number.

It is not a de Polignac number, because 870317149 - 2³ = 870317141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870317141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354444 + ... + 356890.

It is an arithmetic number, because the mean of its divisors is an integer number (59376240).

Almost surely, 2^870317149 is an apocalyptic number.

It is an amenable number.

870317149 is a deficient number, since it is larger than the sum of its proper divisors (79702691).

870317149 is a wasteful number, since it uses less digits than its factorization.

870317149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 870317149 is about 29501.1380966904. The cubic root of 870317149 is about 954.7562580720.

It can be divided in two parts, 8703 and 17149, that added together give a palindrome (25852).

The spelling of 870317149 in words is "eight hundred seventy million, three hundred seventeen thousand, one hundred forty-nine".