135147031 has 2 divisors, whose sum is σ = 135147032. Its totient is φ = 135147030.

The previous prime is 135147007. The next prime is 135147041. The reversal of 135147031 is 130741531.

It is a strong prime.

It is an emirp because it is prime and its reverse (130741531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135147031 - 2⁹ = 135146519 is a prime.

It is a super-2 number, since 2×135147031² = 36529439976229922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135146987 and 135147005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135147041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67573515 + 67573516.

It is an arithmetic number, because the mean of its divisors is an integer number (67573516).

Almost surely, 2^135147031 is an apocalyptic number.

135147031 is a deficient number, since it is larger than the sum of its proper divisors (1).

135147031 is an equidigital number, since it uses as much as digits as its factorization.

135147031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 135147031 is about 11625.2755236166. The cubic root of 135147031 is about 513.1789530796.

Adding to 135147031 its reverse (130741531), we get a palindrome (265888562).

The spelling of 135147031 in words is "one hundred thirty-five million, one hundred forty-seven thousand, thirty-one".