106213651 has 2 divisors, whose sum is σ = 106213652. Its totient is φ = 106213650.

The previous prime is 106213649. The next prime is 106213699. The reversal of 106213651 is 156312601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 106213651 - 2¹ = 106213649 is a prime.

It is a super-2 number, since 2×106213651² = 22562679317499602, which contains 22 as substring.

Together with 106213649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (106213451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53106825 + 53106826.

It is an arithmetic number, because the mean of its divisors is an integer number (53106826).

Almost surely, 2^106213651 is an apocalyptic number.

106213651 is a deficient number, since it is larger than the sum of its proper divisors (1).

106213651 is an equidigital number, since it uses as much as digits as its factorization.

106213651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 106213651 is about 10306.0007277314. Note that the first 3 decimals coincide. The cubic root of 106213651 is about 473.5801010550.

The spelling of 106213651 in words is "one hundred six million, two hundred thirteen thousand, six hundred fifty-one".