249120437 has 2 divisors, whose sum is σ = 249120438. Its totient is φ = 249120436.

The previous prime is 249120407. The next prime is 249120449. The reversal of 249120437 is 734021942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247086961 + 2033476 = 15719^2 + 1426^2 .

It is a cyclic number.

It is not a de Polignac number, because 249120437 - 2¹⁰ = 249119413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249120407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124560218 + 124560219.

It is an arithmetic number, because the mean of its divisors is an integer number (124560219).

Almost surely, 2^249120437 is an apocalyptic number.

It is an amenable number.

249120437 is a deficient number, since it is larger than the sum of its proper divisors (1).

249120437 is an equidigital number, since it uses as much as digits as its factorization.

249120437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 249120437 is about 15783.5495690925. The cubic root of 249120437 is about 629.2208702119.

The spelling of 249120437 in words is "two hundred forty-nine million, one hundred twenty thousand, four hundred thirty-seven".