135124997 has 24 divisors (see below), whose sum is σ = 161861760. Its totient is φ = 112432320.

The previous prime is 135124973. The next prime is 135125021. The reversal of 135124997 is 799421531.

It is an interprime number because it is at equal distance from previous prime (135124973) and next prime (135125021).

It is a de Polignac number, because none of the positive numbers 2^k-135124997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135124907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259097 + ... + 259617.

It is an arithmetic number, because the mean of its divisors is an integer number (6744240).

Almost surely, 2^135124997 is an apocalyptic number.

It is an amenable number.

135124997 is a deficient number, since it is larger than the sum of its proper divisors (26736763).

135124997 is an equidigital number, since it uses as much as digits as its factorization.

135124997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 674 counting only the distinct ones).

The product of its digits is 68040, while the sum is 41.

The square root of 135124997 is about 11624.3278085230. The cubic root of 135124997 is about 513.1510624691.

The spelling of 135124997 in words is "one hundred thirty-five million, one hundred twenty-four thousand, nine hundred ninety-seven".