249143433 has 32 divisors (see below), whose sum is σ = 418467840. Its totient is φ = 128079360.

The previous prime is 249143431. The next prime is 249143441. The reversal of 249143433 is 334341942.

It is not a de Polignac number, because 249143433 - 2¹ = 249143431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 249143394 and 249143403.

It is not an unprimeable number, because it can be changed into a prime (249143431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16848 + ... + 27966.

It is an arithmetic number, because the mean of its divisors is an integer number (13077120).

Almost surely, 2^249143433 is an apocalyptic number.

It is an amenable number.

249143433 is a deficient number, since it is larger than the sum of its proper divisors (169324407).

249143433 is a wasteful number, since it uses less digits than its factorization.

249143433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11237.

The product of its digits is 31104, while the sum is 33.

The square root of 249143433 is about 15784.2780322700. The cubic root of 249143433 is about 629.2402304834.

The spelling of 249143433 in words is "two hundred forty-nine million, one hundred forty-three thousand, four hundred thirty-three".