249427943 has 2 divisors, whose sum is σ = 249427944. Its totient is φ = 249427942.

The previous prime is 249427921. The next prime is 249427957. The reversal of 249427943 is 349724942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249427943 - 2⁶ = 249427879 is a prime.

It is a super-2 number, since 2×249427943² = 124428597498422498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 249427894 and 249427903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249427903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124713971 + 124713972.

It is an arithmetic number, because the mean of its divisors is an integer number (124713972).

Almost surely, 2^249427943 is an apocalyptic number.

249427943 is a deficient number, since it is larger than the sum of its proper divisors (1).

249427943 is an equidigital number, since it uses as much as digits as its factorization.

249427943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 44.

The square root of 249427943 is about 15793.2879097419. The cubic root of 249427943 is about 629.4796602140.

The spelling of 249427943 in words is "two hundred forty-nine million, four hundred twenty-seven thousand, nine hundred forty-three".