213125142525 has 12 divisors (see below), whose sum is σ = 352366902432. Its totient is φ = 113666742640.

The previous prime is 213125142499. The next prime is 213125142539. The reversal of 213125142525 is 525241521312.

It is not a de Polignac number, because 213125142525 - 2¹³ = 213125134333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1420834209 + ... + 1420834358.

It is an arithmetic number, because the mean of its divisors is an integer number (29363908536).

Almost surely, 2^213125142525 is an apocalyptic number.

213125142525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213125142525 is a deficient number, since it is larger than the sum of its proper divisors (139241759907).

213125142525 is a wasteful number, since it uses less digits than its factorization.

213125142525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841668580 (or 2841668575 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

Adding to 213125142525 its reverse (525241521312), we get a palindrome (738366663837).

The spelling of 213125142525 in words is "two hundred thirteen billion, one hundred twenty-five million, one hundred forty-two thousand, five hundred twenty-five".