213253046545 has 64 divisors (see below), whose sum is σ = 337583093760. Its totient is φ = 125286912000.

The previous prime is 213253046471. The next prime is 213253046641. The reversal of 213253046545 is 545640352312.

It is a de Polignac number, because none of the positive numbers 2^k-213253046545 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213253046498 and 213253046507.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1336270 + ... + 1487320.

It is an arithmetic number, because the mean of its divisors is an integer number (5274735840).

Almost surely, 2^213253046545 is an apocalyptic number.

It is an amenable number.

213253046545 is a deficient number, since it is larger than the sum of its proper divisors (124330047215).

213253046545 is a wasteful number, since it uses less digits than its factorization.

213253046545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151286.

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 213253046545 its reverse (545640352312), we get a palindrome (758893398857).

The spelling of 213253046545 in words is "two hundred thirteen billion, two hundred fifty-three million, forty-six thousand, five hundred forty-five".