211425131 has 8 divisors (see below), whose sum is σ = 221765280. Its totient is φ = 201180672.

The previous prime is 211425127. The next prime is 211425139. The reversal of 211425131 is 131524112.

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

It is a cyclic number.

It is not a de Polignac number, because 211425131 - 2² = 211425127 is a prime.

It is a super-2 number, since 2×211425131² = 89401172036734322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211425139) 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, 19376 + ... + 28253.

It is an arithmetic number, because the mean of its divisors is an integer number (27720660).

Almost surely, 2^211425131 is an apocalyptic number.

211425131 is a deficient number, since it is larger than the sum of its proper divisors (10340149).

211425131 is a wasteful number, since it uses less digits than its factorization.

211425131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47845.

The product of its digits is 240, while the sum is 20.

The square root of 211425131 is about 14540.4652951685. The cubic root of 211425131 is about 595.7337472285.

Adding to 211425131 its reverse (131524112), we get a palindrome (342949243).

The spelling of 211425131 in words is "two hundred eleven million, four hundred twenty-five thousand, one hundred thirty-one".