210131142 has 16 divisors (see below), whose sum is σ = 452590320. Its totient is φ = 64655712.

The previous prime is 210131137. The next prime is 210131149. The reversal of 210131142 is 241131012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210131149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346917 + ... + 1347072.

It is an arithmetic number, because the mean of its divisors is an integer number (28286895).

Almost surely, 2^210131142 is an apocalyptic number.

210131142 is an abundant number, since it is smaller than the sum of its proper divisors (242459178).

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

210131142 is a wasteful number, since it uses less digits than its factorization.

210131142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694007.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 210131142 is about 14495.9008688663. The cubic root of 210131142 is about 594.5158993410.

Adding to 210131142 its reverse (241131012), we get a palindrome (451262154).

It can be divided in two parts, 21013 and 1142, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 210131142 in words is "two hundred ten million, one hundred thirty-one thousand, one hundred forty-two".