253513145 has 16 divisors (see below), whose sum is σ = 307307520. Its totient is φ = 200760000.

The previous prime is 253513123. The next prime is 253513177. The reversal of 253513145 is 541315352.

It is not a de Polignac number, because 253513145 - 2¹⁸ = 253251001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361295 + ... + 361995.

It is an arithmetic number, because the mean of its divisors is an integer number (19206720).

Almost surely, 2^253513145 is an apocalyptic number.

It is an amenable number.

253513145 is a deficient number, since it is larger than the sum of its proper divisors (53794375).

253513145 is a wasteful number, since it uses less digits than its factorization.

253513145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336.

The product of its digits is 9000, while the sum is 29.

The square root of 253513145 is about 15922.0961245685. The cubic root of 253513145 is about 632.8976663650.

Adding to 253513145 its reverse (541315352), we get a palindrome (794828497).

The spelling of 253513145 in words is "two hundred fifty-three million, five hundred thirteen thousand, one hundred forty-five".