106821134 has 8 divisors (see below), whose sum is σ = 183121968. Its totient is φ = 45780480.

The previous prime is 106821107. The next prime is 106821137. The reversal of 106821134 is 431128601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×106821134² = 22821509338091912, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106821137) 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, 3815027 + ... + 3815054.

It is an arithmetic number, because the mean of its divisors is an integer number (22890246).

Almost surely, 2^106821134 is an apocalyptic number.

106821134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

106821134 is a deficient number, since it is larger than the sum of its proper divisors (76300834).

106821134 is an equidigital number, since it uses as much as digits as its factorization.

106821134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7630090.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 106821134 is about 10335.4310021402. The cubic root of 106821134 is about 474.4812567754.

Adding to 106821134 its reverse (431128601), we get a palindrome (537949735).

The spelling of 106821134 in words is "one hundred six million, eight hundred twenty-one thousand, one hundred thirty-four".