210612542 has 16 divisors (see below), whose sum is σ = 361293792. Its totient is φ = 90201600.

The previous prime is 210612533. The next prime is 210612553. The reversal of 210612542 is 245216012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21038 + ... + 29390.

It is an arithmetic number, because the mean of its divisors is an integer number (22580862).

Almost surely, 2^210612542 is an apocalyptic number.

210612542 is a deficient number, since it is larger than the sum of its proper divisors (150681250).

210612542 is a wasteful number, since it uses less digits than its factorization.

210612542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10163.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 210612542 is about 14512.4960637376. The cubic root of 210612542 is about 594.9695552061.

Adding to 210612542 its reverse (245216012), we get a palindrome (455828554).

The spelling of 210612542 in words is "two hundred ten million, six hundred twelve thousand, five hundred forty-two".