249500149 has 2 divisors, whose sum is σ = 249500150. Its totient is φ = 249500148.

The previous prime is 249500123. The next prime is 249500189. The reversal of 249500149 is 941005942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247590225 + 1909924 = 15735^2 + 1382^2 .

It is a cyclic number.

It is not a de Polignac number, because 249500149 - 2⁵ = 249500117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249500189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124750074 + 124750075.

It is an arithmetic number, because the mean of its divisors is an integer number (124750075).

Almost surely, 2^249500149 is an apocalyptic number.

It is an amenable number.

249500149 is a deficient number, since it is larger than the sum of its proper divisors (1).

249500149 is an equidigital number, since it uses as much as digits as its factorization.

249500149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 249500149 is about 15795.5737154432. The cubic root of 249500149 is about 629.5403962895.

The spelling of 249500149 in words is "two hundred forty-nine million, five hundred thousand, one hundred forty-nine".