140531130 has 24 divisors (see below), whose sum is σ = 365381172. Its totient is φ = 37474944.

The previous prime is 140531123. The next prime is 140531137. The reversal of 140531130 is 31135041.

140531130 is a `hidden beast` number, since 1 + 4 + 0 + 531 + 130 = 666.

It is an interprime number because it is at equal distance from previous prime (140531123) and next prime (140531137).

It can be written as a sum of positive squares in 2 ways, for example, as 113998329 + 26532801 = 10677^2 + 5151^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140531137) 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, 780639 + ... + 780818.

Almost surely, 2^140531130 is an apocalyptic number.

140531130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140531130 is an abundant number, since it is smaller than the sum of its proper divisors (224850042).

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

140531130 is a wasteful number, since it uses less digits than its factorization.

140531130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561470 (or 1561467 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 140531130 is about 11854.5826581959. The cubic root of 140531130 is about 519.9052218781.

Adding to 140531130 its reverse (31135041), we get a palindrome (171666171).

The spelling of 140531130 in words is "one hundred forty million, five hundred thirty-one thousand, one hundred thirty".