135747131 has 8 divisors (see below), whose sum is σ = 147638064. Its totient is φ = 124063200.

The previous prime is 135747113. The next prime is 135747149. The reversal of 135747131 is 131747531.

135747131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (135747113) and next prime (135747149).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135747131 is a prime.

It is a super-2 number, since 2×135747131² = 36854567149462322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135747181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50381 + ... + 53006.

It is an arithmetic number, because the mean of its divisors is an integer number (18454758).

Almost surely, 2^135747131 is an apocalyptic number.

135747131 is a deficient number, since it is larger than the sum of its proper divisors (11890933).

135747131 is a wasteful number, since it uses less digits than its factorization.

135747131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103501.

The product of its digits is 8820, while the sum is 32.

The square root of 135747131 is about 11651.0570765060. The cubic root of 135747131 is about 513.9373961715.

The spelling of 135747131 in words is "one hundred thirty-five million, seven hundred forty-seven thousand, one hundred thirty-one".