2143525013 has 4 divisors (see below), whose sum is σ = 2449742880. Its totient is φ = 1837307148.

The previous prime is 2143525001. The next prime is 2143525031. The reversal of 2143525013 is 3105253412.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2143525013 - 2⁶ = 2143524949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143525063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153108923 + ... + 153108936.

It is an arithmetic number, because the mean of its divisors is an integer number (612435720).

Almost surely, 2^2143525013 is an apocalyptic number.

It is an amenable number.

2143525013 is a deficient number, since it is larger than the sum of its proper divisors (306217867).

2143525013 is an equidigital number, since it uses as much as digits as its factorization.

2143525013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306217866.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2143525013 is about 46298.2182486540. The cubic root of 2143525013 is about 1289.3659149626.

Adding to 2143525013 its reverse (3105253412), we get a palindrome (5248778425).

The spelling of 2143525013 in words is "two billion, one hundred forty-three million, five hundred twenty-five thousand, thirteen".