1423212015 has 32 divisors (see below), whose sum is σ = 2382852096. Its totient is φ = 724481280.

The previous prime is 1423212013. The next prime is 1423212023. The reversal of 1423212015 is 5102123241.

It is not a de Polignac number, because 1423212015 - 2¹ = 1423212013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1423211982 and 1423212000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423212013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12982 + ... + 54908.

It is an arithmetic number, because the mean of its divisors is an integer number (74464128).

Almost surely, 2^1423212015 is an apocalyptic number.

1423212015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1423212015 is a deficient number, since it is larger than the sum of its proper divisors (959640081).

1423212015 is a wasteful number, since it uses less digits than its factorization.

1423212015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42039.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1423212015 is about 37725.4823030800. The cubic root of 1423212015 is about 1124.8377089349.

Adding to 1423212015 its reverse (5102123241), we get a palindrome (6525335256).

The spelling of 1423212015 in words is "one billion, four hundred twenty-three million, two hundred twelve thousand, fifteen".