212663142 has 48 divisors (see below), whose sum is σ = 469806480. Its totient is φ = 69512256.

The previous prime is 212663137. The next prime is 212663147. The reversal of 212663142 is 241366212.

212663142 is a `hidden beast` number, since 2 + 1 + 26 + 631 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (212663137) and next prime (212663147).

It is a super-2 number, since 2×212663142² = 90451223930624328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212663147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209428 + ... + 210440.

It is an arithmetic number, because the mean of its divisors is an integer number (9787635).

Almost surely, 2^212663142 is an apocalyptic number.

212663142 is an abundant number, since it is smaller than the sum of its proper divisors (257143338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212663142 is a wasteful number, since it uses less digits than its factorization.

212663142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237 (or 1234 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 212663142 is about 14582.9743879635. The cubic root of 212663142 is about 596.8942684568.

The spelling of 212663142 in words is "two hundred twelve million, six hundred sixty-three thousand, one hundred forty-two".