106040729 has 4 divisors (see below), whose sum is σ = 111621840. Its totient is φ = 100459620.

The previous prime is 106040707. The next prime is 106040731. The reversal of 106040729 is 927040601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 927040601 = 149 ⋅6221749.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106040729 is a prime.

It is a super-2 number, since 2×106040729² = 22489272413702882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106040629) 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, 2790527 + ... + 2790564.

It is an arithmetic number, because the mean of its divisors is an integer number (27905460).

Almost surely, 2^106040729 is an apocalyptic number.

106040729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

106040729 is a deficient number, since it is larger than the sum of its proper divisors (5581111).

106040729 is an equidigital number, since it uses as much as digits as its factorization.

106040729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5581110.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 106040729 is about 10297.6079261157. The cubic root of 106040729 is about 473.3229561414.

The spelling of 106040729 in words is "one hundred six million, forty thousand, seven hundred twenty-nine".