135731075 has 6 divisors (see below), whose sum is σ = 168306564. Its totient is φ = 108584840.

The previous prime is 135731069. The next prime is 135731081. The reversal of 135731075 is 570137531.

It is an interprime number because it is at equal distance from previous prime (135731069) and next prime (135731081).

It is a de Polignac number, because none of the positive numbers 2^k-135731075 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2714597 + ... + 2714646.

It is an arithmetic number, because the mean of its divisors is an integer number (28051094).

Almost surely, 2^135731075 is an apocalyptic number.

135731075 is a deficient number, since it is larger than the sum of its proper divisors (32575489).

135731075 is an equidigital number, since it uses as much as digits as its factorization.

135731075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5429253 (or 5429248 counting only the distinct ones).

The product of its (nonzero) digits is 11025, while the sum is 32.

The square root of 135731075 is about 11650.3680199383. The cubic root of 135731075 is about 513.9171327495.

The spelling of 135731075 in words is "one hundred thirty-five million, seven hundred thirty-one thousand, seventy-five".