249041530 has 16 divisors (see below), whose sum is σ = 448465320. Its totient is φ = 99574272.

The previous prime is 249041521. The next prime is 249041543. The reversal of 249041530 is 35140942.

249041530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 224370441 + 24671089 = 14979^2 + 4967^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31762 + ... + 38818.

Almost surely, 2^249041530 is an apocalyptic number.

249041530 is a deficient number, since it is larger than the sum of its proper divisors (199423790).

249041530 is a wasteful number, since it uses less digits than its factorization.

249041530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10593.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 249041530 is about 15781.0497116003. The cubic root of 249041530 is about 629.1544295580.

It can be divided in two parts, 249041 and 530, that added together give a triangular number (249571 = T₇₀₆).

The spelling of 249041530 in words is "two hundred forty-nine million, forty-one thousand, five hundred thirty".