106504991 has 2 divisors, whose sum is σ = 106504992. Its totient is φ = 106504990.

The previous prime is 106504969. The next prime is 106505011. The reversal of 106504991 is 199405601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 106504991 - 2¹⁸ = 106242847 is a prime.

It is a super-2 number, since 2×106504991² = 22686626215820162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106504091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53252495 + 53252496.

It is an arithmetic number, because the mean of its divisors is an integer number (53252496).

Almost surely, 2^106504991 is an apocalyptic number.

106504991 is a deficient number, since it is larger than the sum of its proper divisors (1).

106504991 is an equidigital number, since it uses as much as digits as its factorization.

106504991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 106504991 is about 10320.1255321823. The cubic root of 106504991 is about 474.0127098137.

The spelling of 106504991 in words is "one hundred six million, five hundred four thousand, nine hundred ninety-one".