249290141 has 2 divisors, whose sum is σ = 249290142. Its totient is φ = 249290140.

The previous prime is 249290137. The next prime is 249290147. The reversal of 249290141 is 141092942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232684516 + 16605625 = 15254^2 + 4075^2 .

It is a cyclic number.

It is not a de Polignac number, because 249290141 - 2² = 249290137 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 249290098 and 249290107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249290147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124645070 + 124645071.

It is an arithmetic number, because the mean of its divisors is an integer number (124645071).

Almost surely, 2^249290141 is an apocalyptic number.

It is an amenable number.

249290141 is a deficient number, since it is larger than the sum of its proper divisors (1).

249290141 is an equidigital number, since it uses as much as digits as its factorization.

249290141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 249290141 is about 15788.9246308924. The cubic root of 249290141 is about 629.3637155254.

It can be divided in two parts, 2492901 and 41, that added together give a palindrome (2492942).

The spelling of 249290141 in words is "two hundred forty-nine million, two hundred ninety thousand, one hundred forty-one".