136201031 has 2 divisors, whose sum is σ = 136201032. Its totient is φ = 136201030.

The previous prime is 136201003. The next prime is 136201103. The reversal of 136201031 is 130102631.

Together with next prime (136201103) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136201031 - 2²⁶ = 69092167 is a prime.

It is a super-2 number, since 2×136201031² = 37101441690925922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136201001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68100515 + 68100516.

It is an arithmetic number, because the mean of its divisors is an integer number (68100516).

Almost surely, 2^136201031 is an apocalyptic number.

136201031 is a deficient number, since it is larger than the sum of its proper divisors (1).

136201031 is an equidigital number, since it uses as much as digits as its factorization.

136201031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 136201031 is about 11670.5197399259. The cubic root of 136201031 is about 514.5095793210.

Adding to 136201031 its reverse (130102631), we get a palindrome (266303662).

The spelling of 136201031 in words is "one hundred thirty-six million, two hundred one thousand, thirty-one".