102623731 has 8 divisors (see below), whose sum is σ = 123457280. Its totient is φ = 83333448.

The previous prime is 102623711. The next prime is 102623737. The reversal of 102623731 is 137326201.

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

It is a cyclic number.

It is not a de Polignac number, because 102623731 - 2¹⁵ = 102590963 is a prime.

It is a super-2 number, since 2×102623731² = 21063260328720722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102623696 and 102623705.

It is not an unprimeable number, because it can be changed into a prime (102623737) 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 7 ways as a sum of consecutive naturals, for example, 385671 + ... + 385936.

It is an arithmetic number, because the mean of its divisors is an integer number (15432160).

Almost surely, 2^102623731 is an apocalyptic number.

102623731 is a deficient number, since it is larger than the sum of its proper divisors (20833549).

102623731 is an equidigital number, since it uses as much as digits as its factorization.

102623731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771633.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 102623731 is about 10130.3371612203. The cubic root of 102623731 is about 468.1833160031.

Adding to 102623731 its reverse (137326201), we get a palindrome (239949932).

The spelling of 102623731 in words is "one hundred two million, six hundred twenty-three thousand, seven hundred thirty-one".