135541497 has 48 divisors (see below), whose sum is σ = 238378560. Its totient is φ = 67713408.

The previous prime is 135541481. The next prime is 135541499. The reversal of 135541497 is 794145531.

It is not a de Polignac number, because 135541497 - 2⁴ = 135541481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (135541499) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34443 + ... + 38175.

It is an arithmetic number, because the mean of its divisors is an integer number (4966220).

Almost surely, 2^135541497 is an apocalyptic number.

It is an amenable number.

135541497 is a deficient number, since it is larger than the sum of its proper divisors (102837063).

135541497 is a wasteful number, since it uses less digits than its factorization.

135541497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782 (or 3775 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 135541497 is about 11642.2290391488. The cubic root of 135541497 is about 513.6777555425.

It can be divided in two parts, 13554 and 1497, that added together give a palindrome (15051).

The spelling of 135541497 in words is "one hundred thirty-five million, five hundred forty-one thousand, four hundred ninety-seven".