2145434313025 has 18 divisors (see below), whose sum is σ = 2718145883990. Its totient is φ = 1679829376320.

The previous prime is 2145434313007. The next prime is 2145434313067. The reversal of 2145434313025 is 5203134345412.

It can be written as a sum of positive squares in 3 ways, for example, as 21489507649 + 2123944805376 = 146593^2 + 1457376^2 .

It is not a de Polignac number, because 2145434313025 - 2¹³ = 2145434304833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19369260 + ... + 19479709.

Almost surely, 2^{2145434313025} is an apocalyptic number.

2145434313025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2145434313025 is a deficient number, since it is larger than the sum of its proper divisors (572711570965).

2145434313025 is an equidigital number, since it uses as much as digits as its factorization.

2145434313025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38849073 (or 38849021 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 2145434313025 its reverse (5203134345412), we get a palindrome (7348568658437).

The spelling of 2145434313025 in words is "two trillion, one hundred forty-five billion, four hundred thirty-four million, three hundred thirteen thousand, twenty-five".