253149121 has 8 divisors (see below), whose sum is σ = 257019840. Its totient is φ = 249306768.

The previous prime is 253149077. The next prime is 253149133. The reversal of 253149121 is 121941352.

It is the 6496-th star number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253149121 - 2⁷ = 253148993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253149121.

It is not an unprimeable number, because it can be changed into a prime (253149821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11250 + ... + 25156.

It is an arithmetic number, because the mean of its divisors is an integer number (32127480).

Almost surely, 2^253149121 is an apocalyptic number.

It is an amenable number.

253149121 is a deficient number, since it is larger than the sum of its proper divisors (3870719).

253149121 is a wasteful number, since it uses less digits than its factorization.

253149121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14183.

The product of its digits is 2160, while the sum is 28.

The square root of 253149121 is about 15910.6606085354. The cubic root of 253149121 is about 632.5945916115.

The spelling of 253149121 in words is "two hundred fifty-three million, one hundred forty-nine thousand, one hundred twenty-one".