249027149 has 4 divisors (see below), whose sum is σ = 284602464. Its totient is φ = 213451836.

The previous prime is 249027143. The next prime is 249027151. The reversal of 249027149 is 941720942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 941720942 = 2 ⋅470860471.

It is a cyclic number.

It is not a de Polignac number, because 249027149 - 2⁴ = 249027133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249027143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17787647 + ... + 17787660.

It is an arithmetic number, because the mean of its divisors is an integer number (71150616).

Almost surely, 2^249027149 is an apocalyptic number.

It is an amenable number.

249027149 is a deficient number, since it is larger than the sum of its proper divisors (35575315).

249027149 is an equidigital number, since it uses as much as digits as its factorization.

249027149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35575314.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 249027149 is about 15780.5940635960. The cubic root of 249027149 is about 629.1423190691.

The spelling of 249027149 in words is "two hundred forty-nine million, twenty-seven thousand, one hundred forty-nine".