134401123 has 4 divisors (see below), whose sum is σ = 134456400. Its totient is φ = 134345848.

The previous prime is 134401093. The next prime is 134401139. The reversal of 134401123 is 321104431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321104431 = 347 ⋅925373.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134401123 is a prime.

It is a super-2 number, since 2×134401123² = 36127323727322258, which contains 22 as substring.

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 134401123.

It is not an unprimeable number, because it can be changed into a prime (134407123) 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, 23815 + ... + 28912.

It is an arithmetic number, because the mean of its divisors is an integer number (33614100).

Almost surely, 2^134401123 is an apocalyptic number.

134401123 is a deficient number, since it is larger than the sum of its proper divisors (55277).

134401123 is an equidigital number, since it uses as much as digits as its factorization.

134401123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55276.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 134401123 is about 11593.1498308268. The cubic root of 134401123 is about 512.2330926680.

Adding to 134401123 its reverse (321104431), we get a palindrome (455505554).

The spelling of 134401123 in words is "one hundred thirty-four million, four hundred one thousand, one hundred twenty-three".