106142891 has 8 divisors (see below), whose sum is σ = 108867024. Its totient is φ = 103425280.

The previous prime is 106142887. The next prime is 106142921. The reversal of 106142891 is 198241601.

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 106142891 - 2² = 106142887 is a prime.

It is a super-2 number, since 2×106142891² = 22532626619675762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106142851) 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, 62840 + ... + 64506.

It is an arithmetic number, because the mean of its divisors is an integer number (13608378).

Almost surely, 2^106142891 is an apocalyptic number.

106142891 is a deficient number, since it is larger than the sum of its proper divisors (2724133).

106142891 is a wasteful number, since it uses less digits than its factorization.

106142891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 106142891 is about 10302.5672043428. The cubic root of 106142891 is about 473.4749106456.

The spelling of 106142891 in words is "one hundred six million, one hundred forty-two thousand, eight hundred ninety-one".