131403701 has 12 divisors (see below), whose sum is σ = 155547756. Its totient is φ = 110267520.

The previous prime is 131403689. The next prime is 131403703. The reversal of 131403701 is 107304131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 89283601 + 42120100 = 9449^2 + 6490^2 .

It is a de Polignac number, because none of the positive numbers 2^k-131403701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131403703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40196 + ... + 43341.

It is an arithmetic number, because the mean of its divisors is an integer number (12962313).

Almost surely, 2^131403701 is an apocalyptic number.

131403701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131403701 is a deficient number, since it is larger than the sum of its proper divisors (24144055).

131403701 is a wasteful number, since it uses less digits than its factorization.

131403701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83572 (or 83561 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 131403701 is about 11463.1453362504. The cubic root of 131403701 is about 508.3964770676.

Adding to 131403701 its reverse (107304131), we get a palindrome (238707832).

The spelling of 131403701 in words is "one hundred thirty-one million, four hundred three thousand, seven hundred one".