210545143442 has 16 divisors (see below), whose sum is σ = 320451344640. Its totient is φ = 103733328192.

The previous prime is 210545143421. The next prime is 210545143483. The reversal of 210545143442 is 244341545012.

It is a happy 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, 1245143 + ... + 1404090.

It is an arithmetic number, because the mean of its divisors is an integer number (20028209040).

Almost surely, 2^210545143442 is an apocalyptic number.

210545143442 is a deficient number, since it is larger than the sum of its proper divisors (109906201198).

210545143442 is a wasteful number, since it uses less digits than its factorization.

210545143442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649817.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 210545143442 its reverse (244341545012), we get a palindrome (454886688454).

The spelling of 210545143442 in words is "two hundred ten billion, five hundred forty-five million, one hundred forty-three thousand, four hundred forty-two".