131438603 has 2 divisors, whose sum is σ = 131438604. Its totient is φ = 131438602.

The previous prime is 131438557. The next prime is 131438623. The reversal of 131438603 is 306834131.

It is a strong prime.

It is an emirp because it is prime and its reverse (306834131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131438603 - 2¹⁴ = 131422219 is a prime.

It is a super-2 number, since 2×131438603² = 34552212717183218, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (131438623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65719301 + 65719302.

It is an arithmetic number, because the mean of its divisors is an integer number (65719302).

Almost surely, 2^131438603 is an apocalyptic number.

131438603 is a deficient number, since it is larger than the sum of its proper divisors (1).

131438603 is an equidigital number, since it uses as much as digits as its factorization.

131438603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 131438603 is about 11464.6675922157. The cubic root of 131438603 is about 508.4414846357.

The spelling of 131438603 in words is "one hundred thirty-one million, four hundred thirty-eight thousand, six hundred three".