142102340 has 12 divisors (see below), whose sum is σ = 298414956. Its totient is φ = 56840928.

The previous prime is 142102333. The next prime is 142102379. The reversal of 142102340 is 43201241.

It can be written as a sum of positive squares in 2 ways, for example, as 80856064 + 61246276 = 8992^2 + 7826^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3552539 + ... + 3552578.

It is an arithmetic number, because the mean of its divisors is an integer number (24867913).

Almost surely, 2^142102340 is an apocalyptic number.

142102340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142102340 is an abundant number, since it is smaller than the sum of its proper divisors (156312616).

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

142102340 is a wasteful number, since it uses less digits than its factorization.

142102340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7105126 (or 7105124 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142102340 is about 11920.6686054097. The cubic root of 142102340 is about 521.8356474803.

Adding to 142102340 its reverse (43201241), we get a palindrome (185303581).

The spelling of 142102340 in words is "one hundred forty-two million, one hundred two thousand, three hundred forty".