134400155 has 16 divisors (see below), whose sum is σ = 172212480. Its totient is φ = 100449888.

The previous prime is 134400143. The next prime is 134400187. The reversal of 134400155 is 551004431.

It is a cyclic number.

It is not a de Polignac number, because 134400155 - 2⁴ = 134400139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 134400155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8645 + ... + 18534.

It is an arithmetic number, because the mean of its divisors is an integer number (10763280).

Almost surely, 2^134400155 is an apocalyptic number.

134400155 is a deficient number, since it is larger than the sum of its proper divisors (37812325).

134400155 is a wasteful number, since it uses less digits than its factorization.

134400155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27250.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 134400155 is about 11593.1080819597. The cubic root of 134400155 is about 512.2318629094.

134400155 divided by its sum of digits (23) gives a palindrome (5843485).

Adding to 134400155 its reverse (551004431), we get a palindrome (685404586).

The spelling of 134400155 in words is "one hundred thirty-four million, four hundred thousand, one hundred fifty-five".