134206403 has 8 divisors (see below), whose sum is σ = 144871200. Its totient is φ = 123944128.

The previous prime is 134206399. The next prime is 134206421. The reversal of 134206403 is 304602431.

It is a happy number.

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 134206403 - 2² = 134206399 is a prime.

It is a super-2 number, since 2×134206403² = 36022717212396818, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134206463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99938 + ... + 101271.

It is an arithmetic number, because the mean of its divisors is an integer number (18108900).

Almost surely, 2^134206403 is an apocalyptic number.

134206403 is a deficient number, since it is larger than the sum of its proper divisors (10664797).

134206403 is a wasteful number, since it uses less digits than its factorization.

134206403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201261.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 134206403 is about 11584.7487240768. The cubic root of 134206403 is about 511.9855991128.

Adding to 134206403 its reverse (304602431), we get a palindrome (438808834).

The spelling of 134206403 in words is "one hundred thirty-four million, two hundred six thousand, four hundred three".