134401023 has 12 divisors (see below), whose sum is σ = 195422448. Its totient is φ = 89006400.

The previous prime is 134401021. The next prime is 134401061. The reversal of 134401023 is 320104431.

It is not a de Polignac number, because 134401023 - 2¹ = 134401021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 134400987 and 134401005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134401021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48090 + ... + 50807.

It is an arithmetic number, because the mean of its divisors is an integer number (16285204).

Almost surely, 2^134401023 is an apocalyptic number.

134401023 is a deficient number, since it is larger than the sum of its proper divisors (61021425).

134401023 is a wasteful number, since it uses less digits than its factorization.

134401023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99054 (or 99051 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 134401023 is about 11593.1455179343. The cubic root of 134401023 is about 512.2329656271.

Adding to 134401023 its reverse (320104431), we get a palindrome (454505454).

The spelling of 134401023 in words is "one hundred thirty-four million, four hundred one thousand, twenty-three".