135725249 has 8 divisors (see below), whose sum is σ = 153169920. Its totient is φ = 119131600.

The previous prime is 135725221. The next prime is 135725269. The reversal of 135725249 is 942527531.

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

It is a cyclic number.

It is not a de Polignac number, because 135725249 - 2²⁰ = 134676673 is a prime.

It is a super-2 number, since 2×135725249² = 36842686432224002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135725269) 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, 212417 + ... + 213054.

It is an arithmetic number, because the mean of its divisors is an integer number (19146240).

Almost surely, 2^135725249 is an apocalyptic number.

It is an amenable number.

135725249 is a deficient number, since it is larger than the sum of its proper divisors (17444671).

135725249 is a wasteful number, since it uses less digits than its factorization.

135725249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425511.

The product of its digits is 75600, while the sum is 38.

The square root of 135725249 is about 11650.1179822352. The cubic root of 135725249 is about 513.9097796703.

The spelling of 135725249 in words is "one hundred thirty-five million, seven hundred twenty-five thousand, two hundred forty-nine".