131440010 has 16 divisors (see below), whose sum is σ = 254791656. Its totient is φ = 48531648.

The previous prime is 131440007. The next prime is 131440019. The reversal of 131440010 is 10044131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 63888049 + 67551961 = 7993^2 + 8219^2 .

It is not an unprimeable number, because it can be changed into a prime (131440019) 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, 505409 + ... + 505668.

Almost surely, 2^131440010 is an apocalyptic number.

131440010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131440010 is a deficient number, since it is larger than the sum of its proper divisors (123351646).

131440010 is a wasteful number, since it uses less digits than its factorization.

131440010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011097.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 131440010 is about 11464.7289544934. The cubic root of 131440010 is about 508.4432988532.

Adding to 131440010 its reverse (10044131), we get a palindrome (141484141).

The spelling of 131440010 in words is "one hundred thirty-one million, four hundred forty thousand, ten".