106653531 has 4 divisors (see below), whose sum is σ = 142204712. Its totient is φ = 71102352.

The previous prime is 106653527. The next prime is 106653539. The reversal of 106653531 is 135356601.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 106653531 - 2² = 106653527 is a prime.

It is a super-2 number, since 2×106653531² = 22749951349535922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106653539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17775586 + ... + 17775591.

It is an arithmetic number, because the mean of its divisors is an integer number (35551178).

Almost surely, 2^106653531 is an apocalyptic number.

106653531 is a deficient number, since it is larger than the sum of its proper divisors (35551181).

106653531 is an equidigital number, since it uses as much as digits as its factorization.

106653531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35551180.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 106653531 is about 10327.3196425791. The cubic root of 106653531 is about 474.2329722308.

It can be divided in two parts, 10665 and 3531, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 106653531 in words is "one hundred six million, six hundred fifty-three thousand, five hundred thirty-one".