135849497 has 4 divisors (see below), whose sum is σ = 155256576. Its totient is φ = 116442420.

The previous prime is 135849473. The next prime is 135849529. The reversal of 135849497 is 794948531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135849497 - 2⁶ = 135849433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135849407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9703529 + ... + 9703542.

It is an arithmetic number, because the mean of its divisors is an integer number (38814144).

Almost surely, 2^135849497 is an apocalyptic number.

It is an amenable number.

135849497 is a deficient number, since it is larger than the sum of its proper divisors (19407079).

135849497 is an equidigital number, since it uses as much as digits as its factorization.

135849497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19407078.

The product of its digits is 1088640, while the sum is 50.

The square root of 135849497 is about 11655.4492405913. The cubic root of 135849497 is about 514.0665492923.

The spelling of 135849497 in words is "one hundred thirty-five million, eight hundred forty-nine thousand, four hundred ninety-seven".