134402511 has 4 divisors (see below), whose sum is σ = 179203352. Its totient is φ = 89601672.

The previous prime is 134402509. The next prime is 134402557. The reversal of 134402511 is 115204431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 134402511 - 2¹ = 134402509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134402591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22400416 + ... + 22400421.

It is an arithmetic number, because the mean of its divisors is an integer number (44800838).

Almost surely, 2^134402511 is an apocalyptic number.

134402511 is a deficient number, since it is larger than the sum of its proper divisors (44800841).

134402511 is an equidigital number, since it uses as much as digits as its factorization.

134402511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44800840.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 134402511 is about 11593.2096936094. The cubic root of 134402511 is about 512.2348559893.

Adding to 134402511 its reverse (115204431), we get a palindrome (249606942).

It can be divided in two parts, 13440 and 2511, that added together give a palindrome (15951).

The spelling of 134402511 in words is "one hundred thirty-four million, four hundred two thousand, five hundred eleven".