210142534 has 32 divisors (see below), whose sum is σ = 367842816. Its totient is φ = 88179840.

The previous prime is 210142501. The next prime is 210142547. The reversal of 210142534 is 435241012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161374 + ... + 162670.

It is an arithmetic number, because the mean of its divisors is an integer number (11495088).

Almost surely, 2^210142534 is an apocalyptic number.

210142534 is a deficient number, since it is larger than the sum of its proper divisors (157700282).

210142534 is a wasteful number, since it uses less digits than its factorization.

210142534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540.

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

The square root of 210142534 is about 14496.2938022103. The cubic root of 210142534 is about 594.5266427949.

Adding to 210142534 its reverse (435241012), we get a palindrome (645383546).

The spelling of 210142534 in words is "two hundred ten million, one hundred forty-two thousand, five hundred thirty-four".