140342130 has 24 divisors (see below), whose sum is σ = 364889772. Its totient is φ = 37424544.

The previous prime is 140342119. The next prime is 140342131. The reversal of 140342130 is 31243041.

It can be written as a sum of positive squares in 2 ways, for example, as 136960209 + 3381921 = 11703^2 + 1839^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (140342131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 779589 + ... + 779768.

Almost surely, 2^140342130 is an apocalyptic number.

140342130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140342130 is an abundant number, since it is smaller than the sum of its proper divisors (224547642).

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

140342130 is a wasteful number, since it uses less digits than its factorization.

140342130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559370 (or 1559367 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 140342130 is about 11846.6083753959. The cubic root of 140342130 is about 519.6720441931.

Adding to 140342130 its reverse (31243041), we get a palindrome (171585171).

The spelling of 140342130 in words is "one hundred forty million, three hundred forty-two thousand, one hundred thirty".