134952391 has 8 divisors (see below), whose sum is σ = 155964960. Its totient is φ = 114373248.

The previous prime is 134952371. The next prime is 134952403. The reversal of 134952391 is 193259431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134952391 - 2⁷ = 134952263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134952391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134952371) 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 7 ways as a sum of consecutive naturals, for example, 107686 + ... + 108931.

It is an arithmetic number, because the mean of its divisors is an integer number (19495620).

Almost surely, 2^134952391 is an apocalyptic number.

134952391 is a deficient number, since it is larger than the sum of its proper divisors (21012569).

134952391 is an equidigital number, since it uses as much as digits as its factorization.

134952391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216713.

The product of its digits is 29160, while the sum is 37.

The square root of 134952391 is about 11616.9010928044. The cubic root of 134952391 is about 512.9324730276.

The spelling of 134952391 in words is "one hundred thirty-four million, nine hundred fifty-two thousand, three hundred ninety-one".