206315142 has 32 divisors (see below), whose sum is σ = 451301760. Its totient is φ = 62358720.

The previous prime is 206315141. The next prime is 206315143. The reversal of 206315142 is 241513602.

It is an interprime number because it is at equal distance from previous prime (206315141) and next prime (206315143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206315141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23173 + ... + 30815.

It is an arithmetic number, because the mean of its divisors is an integer number (14103180).

Almost surely, 2^206315142 is an apocalyptic number.

206315142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

206315142 is an abundant number, since it is smaller than the sum of its proper divisors (244986618).

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

206315142 is a wasteful number, since it uses less digits than its factorization.

206315142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8068.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 206315142 is about 14363.6743906286. The cubic root of 206315142 is about 590.8950715713.

Adding to 206315142 its reverse (241513602), we get a palindrome (447828744).

It can be divided in two parts, 2063 and 15142, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 206315142 in words is "two hundred six million, three hundred fifteen thousand, one hundred forty-two".