252513145 has 8 divisors (see below), whose sum is σ = 303258240. Its totient is φ = 201848880.

The previous prime is 252513139. The next prime is 252513161. The reversal of 252513145 is 541315252.

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

It is not a de Polignac number, because 252513145 - 2⁹ = 252512633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13105 + ... + 26014.

It is an arithmetic number, because the mean of its divisors is an integer number (37907280).

Almost surely, 2^252513145 is an apocalyptic number.

It is an amenable number.

252513145 is a deficient number, since it is larger than the sum of its proper divisors (50745095).

252513145 is a wasteful number, since it uses less digits than its factorization.

252513145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40415.

The product of its digits is 6000, while the sum is 28.

The square root of 252513145 is about 15890.6621951384. The cubic root of 252513145 is about 632.0644003500.

Adding to 252513145 its reverse (541315252), we get a palindrome (793828397).

The spelling of 252513145 in words is "two hundred fifty-two million, five hundred thirteen thousand, one hundred forty-five".