913143 has 32 divisors (see below), whose sum is σ = 1566720. Its totient is φ = 459360.

The previous prime is 913139. The next prime is 913151. The reversal of 913143 is 341319.

It is not a de Polignac number, because 913143 - 2² = 913139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13596 + ... + 13662.

It is an arithmetic number, because the mean of its divisors is an integer number (48960).

2⁹¹³¹⁴³ is an apocalyptic number.

913143 is a deficient number, since it is larger than the sum of its proper divisors (653577).

913143 is a wasteful number, since it uses less digits than its factorization.

913143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147.

The product of its digits is 324, while the sum is 21.

The square root of 913143 is about 955.5851610401. The cubic root of 913143 is about 97.0166478671.

The spelling of 913143 in words is "nine hundred thirteen thousand, one hundred forty-three".