253530137 has 8 divisors (see below), whose sum is σ = 293830272. Its totient is φ = 214250400.

The previous prime is 253530133. The next prime is 253530157. The reversal of 253530137 is 731035352.

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

It is not a de Polignac number, because 253530137 - 2² = 253530133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253530133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254564 + ... + 255557.

It is an arithmetic number, because the mean of its divisors is an integer number (36728784).

Almost surely, 2^253530137 is an apocalyptic number.

It is an amenable number.

253530137 is a deficient number, since it is larger than the sum of its proper divisors (40300135).

253530137 is an equidigital number, since it uses as much as digits as its factorization.

253530137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510199.

The product of its (nonzero) digits is 9450, while the sum is 29.

The square root of 253530137 is about 15922.6297137125. The cubic root of 253530137 is about 632.9118062720.

Adding to 253530137 its reverse (731035352), we get a palindrome (984565489).

The spelling of 253530137 in words is "two hundred fifty-three million, five hundred thirty thousand, one hundred thirty-seven".