2513212145 has 4 divisors (see below), whose sum is σ = 3015854580. Its totient is φ = 2010569712.

The previous prime is 2513212111. The next prime is 2513212159. The reversal of 2513212145 is 5412123152.

2513212145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1228993249 + 1284218896 = 35057^2 + 35836^2 .

It is a cyclic number.

It is not a de Polignac number, because 2513212145 - 2⁶ = 2513212081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251321210 + ... + 251321219.

It is an arithmetic number, because the mean of its divisors is an integer number (753963645).

Almost surely, 2^2513212145 is an apocalyptic number.

It is an amenable number.

2513212145 is a deficient number, since it is larger than the sum of its proper divisors (502642435).

2513212145 is an equidigital number, since it uses as much as digits as its factorization.

2513212145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502642434.

The product of its digits is 2400, while the sum is 26.

The square root of 2513212145 is about 50131.9473489710. The cubic root of 2513212145 is about 1359.5954940665.

Adding to 2513212145 its reverse (5412123152), we get a palindrome (7925335297).

The spelling of 2513212145 in words is "two billion, five hundred thirteen million, two hundred twelve thousand, one hundred forty-five".