106213919 has 12 divisors (see below), whose sum is σ = 123726024. Its totient is φ = 90914544.

The previous prime is 106213901. The next prime is 106213927. The reversal of 106213919 is 919312601.

It is a de Polignac number, because none of the positive numbers 2^k-106213919 is a prime.

It is a super-2 number, since 2×106213919² = 22562793178677122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106213319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58544 + ... + 60330.

It is an arithmetic number, because the mean of its divisors is an integer number (10310502).

Almost surely, 2^106213919 is an apocalyptic number.

106213919 is a deficient number, since it is larger than the sum of its proper divisors (17512105).

106213919 is a wasteful number, since it uses less digits than its factorization.

106213919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014 (or 3007 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 106213919 is about 10306.0137298570. The cubic root of 106213919 is about 473.5804993697.

The spelling of 106213919 in words is "one hundred six million, two hundred thirteen thousand, nine hundred nineteen".