130406 has 4 divisors (see below), whose sum is σ = 195612. Its totient is φ = 65202.

The previous prime is 130399. The next prime is 130409. The reversal of 130406 is 604031.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130409) by changing a digit.

130406 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32600 + ... + 32603.

It is an arithmetic number, because the mean of its divisors is an integer number (48903).

2¹³⁰⁴⁰⁶ is an apocalyptic number.

130406 is a deficient number, since it is larger than the sum of its proper divisors (65206).

130406 is an equidigital number, since it uses as much as digits as its factorization.

130406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65205.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 130406 is about 361.1177093414. The cubic root of 130406 is about 50.7106516322.

Adding to 130406 its reverse (604031), we get a palindrome (734437).

The spelling of 130406 in words is "one hundred thirty thousand, four hundred six".