249156125 has 32 divisors (see below), whose sum is σ = 328872960. Its totient is φ = 188073600.

The previous prime is 249156121. The next prime is 249156133. The reversal of 249156125 is 521651942.

It is a happy number.

It is not a de Polignac number, because 249156125 - 2² = 249156121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249156121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226577 + ... + 227673.

It is an arithmetic number, because the mean of its divisors is an integer number (10277280).

Almost surely, 2^249156125 is an apocalyptic number.

249156125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

249156125 is a deficient number, since it is larger than the sum of its proper divisors (79716835).

249156125 is a wasteful number, since it uses less digits than its factorization.

249156125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1204 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 249156125 is about 15784.6800727794. The cubic root of 249156125 is about 629.2509153344.

The spelling of 249156125 in words is "two hundred forty-nine million, one hundred fifty-six thousand, one hundred twenty-five".