134749215 has 24 divisors (see below), whose sum is σ = 237528720. Its totient is φ = 70646784.

The previous prime is 134749213. The next prime is 134749217. The reversal of 134749215 is 512947431.

It is an interprime number because it is at equal distance from previous prime (134749213) and next prime (134749217).

It is not a de Polignac number, because 134749215 - 2¹ = 134749213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134749215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134749213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22722 + ... + 28031.

It is an arithmetic number, because the mean of its divisors is an integer number (9897030).

Almost surely, 2^134749215 is an apocalyptic number.

134749215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

134749215 is a deficient number, since it is larger than the sum of its proper divisors (102779505).

134749215 is a wasteful number, since it uses less digits than its factorization.

134749215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50823 (or 50820 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 134749215 is about 11608.1529538510. The cubic root of 134749215 is about 512.6749305681.

The spelling of 134749215 in words is "one hundred thirty-four million, seven hundred forty-nine thousand, two hundred fifteen".