106831537 has 2 divisors, whose sum is σ = 106831538. Its totient is φ = 106831536.

The previous prime is 106831523. The next prime is 106831577. The reversal of 106831537 is 735138601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74580496 + 32251041 = 8636^2 + 5679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106831537 is a prime.

It is a super-2 number, since 2×106831537² = 22825954595564738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106831507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53415768 + 53415769.

It is an arithmetic number, because the mean of its divisors is an integer number (53415769).

Almost surely, 2^106831537 is an apocalyptic number.

It is an amenable number.

106831537 is a deficient number, since it is larger than the sum of its proper divisors (1).

106831537 is an equidigital number, since it uses as much as digits as its factorization.

106831537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 106831537 is about 10335.9342586919. The cubic root of 106831537 is about 474.4966590593.

The spelling of 106831537 in words is "one hundred six million, eight hundred thirty-one thousand, five hundred thirty-seven".