106791557 has 8 divisors (see below), whose sum is σ = 107835000. Its totient is φ = 105753024.

The previous prime is 106791539. The next prime is 106791577. The reversal of 106791557 is 755197601.

It is a Cunningham number, because it is equal to 10334²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 31292836 + 75498721 = 5594^2 + 8689^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 106791557 - 2⁶ = 106791493 is a prime.

It is a super-2 number, since 2×106791557² = 22808873292968498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106791577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53819 + ... + 55767.

It is an arithmetic number, because the mean of its divisors is an integer number (13479375).

Almost surely, 2^106791557 is an apocalyptic number.

It is an amenable number.

106791557 is a deficient number, since it is larger than the sum of its proper divisors (1043443).

106791557 is a wasteful number, since it uses less digits than its factorization.

106791557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455.

The product of its (nonzero) digits is 66150, while the sum is 41.

The square root of 106791557 is about 10334.0000483840. Note that the first 4 decimals coincide. The cubic root of 106791557 is about 474.4374607367.

The spelling of 106791557 in words is "one hundred six million, seven hundred ninety-one thousand, five hundred fifty-seven".