212252431 has 2 divisors, whose sum is σ = 212252432. Its totient is φ = 212252430.

The previous prime is 212252389. The next prime is 212252473. The reversal of 212252431 is 134252212.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (212252389) and next prime (212252473).

It is a cyclic number.

It is not a de Polignac number, because 212252431 - 2¹¹ = 212250383 is a prime.

It is a super-2 number, since 2×212252431² = 90102188930819522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212252731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106126215 + 106126216.

It is an arithmetic number, because the mean of its divisors is an integer number (106126216).

Almost surely, 2^212252431 is an apocalyptic number.

212252431 is a deficient number, since it is larger than the sum of its proper divisors (1).

212252431 is an equidigital number, since it uses as much as digits as its factorization.

212252431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 212252431 is about 14568.8857157986. The cubic root of 212252431 is about 596.5097651728.

The spelling of 212252431 in words is "two hundred twelve million, two hundred fifty-two thousand, four hundred thirty-one".