105640651 has 2 divisors, whose sum is σ = 105640652. Its totient is φ = 105640650.

The previous prime is 105640603. The next prime is 105640699. The reversal of 105640651 is 156046501.

It is a balanced prime because it is at equal distance from previous prime (105640603) and next prime (105640699).

It is a cyclic number.

It is not a de Polignac number, because 105640651 - 2⁷ = 105640523 is a prime.

It is a super-2 number, since 2×105640651² = 22319894287407602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105640751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52820325 + 52820326.

It is an arithmetic number, because the mean of its divisors is an integer number (52820326).

Almost surely, 2^105640651 is an apocalyptic number.

105640651 is a deficient number, since it is larger than the sum of its proper divisors (1).

105640651 is an equidigital number, since it uses as much as digits as its factorization.

105640651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 105640651 is about 10278.1637951533. The cubic root of 105640651 is about 472.7269437879.

The spelling of 105640651 in words is "one hundred five million, six hundred forty thousand, six hundred fifty-one".