102431722 has 8 divisors (see below), whose sum is σ = 156546756. Its totient is φ = 50249472.

The previous prime is 102431713. The next prime is 102431731. The reversal of 102431722 is 227134201.

It is an interprime number because it is at equal distance from previous prime (102431713) and next prime (102431731).

It can be written as a sum of positive squares in 2 ways, for example, as 94303521 + 8128201 = 9711^2 + 2851^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 102431693 and 102431702.

It is an unprimeable number.

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, 483063 + ... + 483274.

Almost surely, 2^102431722 is an apocalyptic number.

102431722 is a deficient number, since it is larger than the sum of its proper divisors (54115034).

102431722 is an equidigital number, since it uses as much as digits as its factorization.

102431722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966392.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 102431722 is about 10120.8557938546. The cubic root of 102431722 is about 467.8911433819.

Adding to 102431722 its reverse (227134201), we get a palindrome (329565923).

The spelling of 102431722 in words is "one hundred two million, four hundred thirty-one thousand, seven hundred twenty-two".