103620731 has 2 divisors, whose sum is σ = 103620732.
Its totient is φ = 103620730.
The previous prime is 103620721. The next prime is 103620767. The reversal of 103620731 is 137026301.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-103620731 is a prime.
It is a super-3 number, since 3×1036207313 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a junction number, because it is equal to n+sod(n) for n = 103620697 and 103620706.
It is not a weakly prime, because it can be changed into another prime (103620721) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51810365 + 51810366.
It is an arithmetic number, because the mean of its divisors is an integer number (51810366).
Almost surely, 2103620731 is an apocalyptic number.
103620731 is a deficient number, since it is larger than the sum of its proper divisors (1).
103620731 is an equidigital number, since it uses as much as digits as its factorization.
103620731 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 756, while the sum is 23.
The square root of 103620731 is about 10179.4268502701.
The cubic root of 103620731 is about 469.6945820182.
The spelling of 103620731 in words is "one hundred three million, six hundred twenty thousand, seven hundred thirty-one".