131420037 has 24 divisors (see below), whose sum is σ = 204682816. Its totient is φ = 73473408.

The previous prime is 131420027. The next prime is 131420039. The reversal of 131420037 is 730024131.

It is not a de Polignac number, because 131420037 - 2¹¹ = 131417989 is a prime.

It is a super-2 number, since 2×131420037² = 34542452250162738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131419995 and 131420022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131420039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44973 + ... + 47805.

Almost surely, 2^131420037 is an apocalyptic number.

It is an amenable number.

131420037 is a deficient number, since it is larger than the sum of its proper divisors (73262779).

131420037 is an equidigital number, since it uses as much as digits as its factorization.

131420037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937 (or 2890 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 131420037 is about 11463.8578585047. The cubic root of 131420037 is about 508.4175440052.

Adding to 131420037 its reverse (730024131), we get a palindrome (861444168).

The spelling of 131420037 in words is "one hundred thirty-one million, four hundred twenty thousand, thirty-seven".