106502691 has 4 divisors (see below), whose sum is σ = 142003592. Its totient is φ = 71001792.

The previous prime is 106502681. The next prime is 106502713. The reversal of 106502691 is 196205601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 196205601 = 3 ⋅65401867.

It is not a de Polignac number, because 106502691 - 2⁵ = 106502659 is a prime.

It is a super-2 number, since 2×106502691² = 22685646380482962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106502621) 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, 17750446 + ... + 17750451.

It is an arithmetic number, because the mean of its divisors is an integer number (35500898).

Almost surely, 2^106502691 is an apocalyptic number.

106502691 is a deficient number, since it is larger than the sum of its proper divisors (35500901).

106502691 is an equidigital number, since it uses as much as digits as its factorization.

106502691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35500900.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 106502691 is about 10320.0140988276. The cubic root of 106502691 is about 474.0092976509.

The spelling of 106502691 in words is "one hundred six million, five hundred two thousand, six hundred ninety-one".