106431249 has 8 divisors (see below), whose sum is σ = 143704960. Its totient is φ = 70055856.

The previous prime is 106431233. The next prime is 106431257. The reversal of 106431249 is 942134601.

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

It is not a de Polignac number, because 106431249 - 2⁴ = 106431233 is a prime.

It is a super-2 number, since 2×106431249² = 22655221527400002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (106431229) 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, 224302 + ... + 224775.

It is an arithmetic number, because the mean of its divisors is an integer number (17963120).

Almost surely, 2^106431249 is an apocalyptic number.

It is an amenable number.

106431249 is a deficient number, since it is larger than the sum of its proper divisors (37273711).

106431249 is an equidigital number, since it uses as much as digits as its factorization.

106431249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449159.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 106431249 is about 10316.5521856868. The cubic root of 106431249 is about 473.9032854717.

The spelling of 106431249 in words is "one hundred six million, four hundred thirty-one thousand, two hundred forty-nine".