1215414123 has 32 divisors (see below), whose sum is σ = 2024593920. Its totient is φ = 630082560.

The previous prime is 1215414119. The next prime is 1215414169. The reversal of 1215414123 is 3214145121.

It is not a de Polignac number, because 1215414123 - 2² = 1215414119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1215414093 and 1215414102.

It is not an unprimeable number, because it can be changed into a prime (1215414223) 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, 112411 + ... + 122747.

It is an arithmetic number, because the mean of its divisors is an integer number (63268560).

Almost surely, 2^1215414123 is an apocalyptic number.

1215414123 is a deficient number, since it is larger than the sum of its proper divisors (809179797).

1215414123 is a wasteful number, since it uses less digits than its factorization.

1215414123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10867.

The product of its digits is 960, while the sum is 24.

The square root of 1215414123 is about 34862.7899485971. The cubic root of 1215414123 is about 1067.1892114298.

Adding to 1215414123 its reverse (3214145121), we get a palindrome (4429559244).

The spelling of 1215414123 in words is "one billion, two hundred fifteen million, four hundred fourteen thousand, one hundred twenty-three".