213254514251 has 8 divisors (see below), whose sum is σ = 215842475520. Its totient is φ = 210666996712.

The previous prime is 213254514229. The next prime is 213254514307. The reversal of 213254514251 is 152415452312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213254514251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213254510251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913070 + ... + 1122588.

It is an arithmetic number, because the mean of its divisors is an integer number (26980309440).

Almost surely, 2^213254514251 is an apocalyptic number.

213254514251 is a deficient number, since it is larger than the sum of its proper divisors (2587961269).

213254514251 is a wasteful number, since it uses less digits than its factorization.

213254514251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221865.

The product of its digits is 48000, while the sum is 35.

Adding to 213254514251 its reverse (152415452312), we get a palindrome (365669966563).

The spelling of 213254514251 in words is "two hundred thirteen billion, two hundred fifty-four million, five hundred fourteen thousand, two hundred fifty-one".