135537494 has 16 divisors (see below), whose sum is σ = 208115232. Its totient is φ = 66184128.

The previous prime is 135537491. The next prime is 135537497. The reversal of 135537494 is 494735531.

It is an interprime number because it is at equal distance from previous prime (135537491) and next prime (135537497).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135537491) 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, 10532 + ... + 19544.

It is an arithmetic number, because the mean of its divisors is an integer number (13007202).

Almost surely, 2^135537494 is an apocalyptic number.

135537494 is a deficient number, since it is larger than the sum of its proper divisors (72577738).

135537494 is a wasteful number, since it uses less digits than its factorization.

135537494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9191.

The product of its digits is 226800, while the sum is 41.

The square root of 135537494 is about 11642.0571206295. The cubic root of 135537494 is about 513.6726986107.

The spelling of 135537494 in words is "one hundred thirty-five million, five hundred thirty-seven thousand, four hundred ninety-four".