134140665 has 16 divisors (see below), whose sum is σ = 225921600. Its totient is φ = 67776192.

The previous prime is 134140661. The next prime is 134140667. The reversal of 134140665 is 566041431.

It is not a de Polignac number, because 134140665 - 2² = 134140661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134140661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235050 + ... + 235619.

It is an arithmetic number, because the mean of its divisors is an integer number (14120100).

Almost surely, 2^134140665 is an apocalyptic number.

134140665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134140665 is a deficient number, since it is larger than the sum of its proper divisors (91780935).

134140665 is a wasteful number, since it uses less digits than its factorization.

134140665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470696.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 134140665 is about 11581.9111117294. The cubic root of 134140665 is about 511.9019905680.

The spelling of 134140665 in words is "one hundred thirty-four million, one hundred forty thousand, six hundred sixty-five".