106631505 has 32 divisors (see below), whose sum is σ = 192412800. Its totient is φ = 56016576.

The previous prime is 106631501. The next prime is 106631527. The reversal of 106631505 is 505136601.

It is a happy number.

It is not a de Polignac number, because 106631505 - 2² = 106631501 is a prime.

It is a super-2 number, since 2×106631505² = 22740555717130050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (106631501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3151 + ... + 14939.

It is an arithmetic number, because the mean of its divisors is an integer number (6012900).

Almost surely, 2^106631505 is an apocalyptic number.

106631505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

106631505 is a deficient number, since it is larger than the sum of its proper divisors (85781295).

106631505 is a wasteful number, since it uses less digits than its factorization.

106631505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11870 (or 11864 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 106631505 is about 10326.2531927123. The cubic root of 106631505 is about 474.2003239147.

The spelling of 106631505 in words is "one hundred six million, six hundred thirty-one thousand, five hundred five".