253740147 has 8 divisors (see below), whose sum is σ = 358221456. Its totient is φ = 159209472.

The previous prime is 253740143. The next prime is 253740161. The reversal of 253740147 is 741047352.

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

It is not a de Polignac number, because 253740147 - 2² = 253740143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253740143) 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, 2487598 + ... + 2487699.

It is an arithmetic number, because the mean of its divisors is an integer number (44777682).

Almost surely, 2^253740147 is an apocalyptic number.

253740147 is a deficient number, since it is larger than the sum of its proper divisors (104481309).

253740147 is a wasteful number, since it uses less digits than its factorization.

253740147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975317.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 253740147 is about 15929.2230507329. The cubic root of 253740147 is about 633.0865141343.

Adding to 253740147 its reverse (741047352), we get a palindrome (994787499).

The spelling of 253740147 in words is "two hundred fifty-three million, seven hundred forty thousand, one hundred forty-seven".