135497437 has 6 divisors (see below), whose sum is σ = 136507418. Its totient is φ = 134489472.

The previous prime is 135497423. The next prime is 135497447. The reversal of 135497437 is 734794531.

It can be written as a sum of positive squares in 3 ways, for example, as 16818201 + 118679236 = 4101^2 + 10894^2 .

It is not a de Polignac number, because 135497437 - 2²³ = 127108829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135497393 and 135497402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135497407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145389 + ... + 146317.

Almost surely, 2^135497437 is an apocalyptic number.

It is an amenable number.

135497437 is a deficient number, since it is larger than the sum of its proper divisors (1009981).

135497437 is an frugal number, since it uses more digits than its factorization.

135497437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015 (or 1086 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The square root of 135497437 is about 11640.3366360256. The cubic root of 135497437 is about 513.6220897003.

The spelling of 135497437 in words is "one hundred thirty-five million, four hundred ninety-seven thousand, four hundred thirty-seven".