10123215 has 16 divisors (see below), whose sum is σ = 16237536. Its totient is φ = 5385600.

The previous prime is 10123207. The next prime is 10123241. The reversal of 10123215 is 51232101.

It is not a de Polignac number, because 10123215 - 2³ = 10123207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 10123194 and 10123203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9405 + ... + 10425.

It is an arithmetic number, because the mean of its divisors is an integer number (1014846).

Almost surely, 2^10123215 is an apocalyptic number.

10123215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10123215 is a deficient number, since it is larger than the sum of its proper divisors (6114321).

10123215 is a wasteful number, since it uses less digits than its factorization.

10123215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 10123215 is about 3181.7000172864. The cubic root of 10123215 is about 216.3247216361.

Adding to 10123215 its reverse (51232101), we get a palindrome (61355316).

It can be divided in two parts, 1012321 and 5, that multiplied together give a palindrome (5061605).

The spelling of 10123215 in words is "ten million, one hundred twenty-three thousand, two hundred fifteen".