106213658 has 4 divisors (see below), whose sum is σ = 159320490. Its totient is φ = 53106828.

The previous prime is 106213651. The next prime is 106213699. The reversal of 106213658 is 856312601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 58782889 + 47430769 = 7667^2 + 6887^2 .

It is a super-2 number, since 2×106213658² = 22562682291481928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106213651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26553413 + ... + 26553416.

Almost surely, 2^106213658 is an apocalyptic number.

106213658 is a deficient number, since it is larger than the sum of its proper divisors (53106832).

106213658 is an equidigital number, since it uses as much as digits as its factorization.

106213658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53106831.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 106213658 is about 10306.0010673394. The cubic root of 106213658 is about 473.5801114588.

The spelling of 106213658 in words is "one hundred six million, two hundred thirteen thousand, six hundred fifty-eight".