106431603 has 8 divisors (see below), whose sum is σ = 148078848. Its totient is φ = 67869384.

The previous prime is 106431593. The next prime is 106431607. The reversal of 106431603 is 306134601.

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

It is not a de Polignac number, because 106431603 - 2⁶ = 106431539 is a prime.

It is a super-2 number, since 2×106431603² = 22655372234299218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106431607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771175 + ... + 771312.

It is an arithmetic number, because the mean of its divisors is an integer number (18509856).

Almost surely, 2^106431603 is an apocalyptic number.

106431603 is a deficient number, since it is larger than the sum of its proper divisors (41647245).

106431603 is a wasteful number, since it uses less digits than its factorization.

106431603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542513.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 106431603 is about 10316.5693425673. The cubic root of 106431603 is about 473.9038108863.

It can be divided in two parts, 10643 and 1603, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 106431603 in words is "one hundred six million, four hundred thirty-one thousand, six hundred three".