1215314425 has 12 divisors (see below), whose sum is σ = 1622912620. Its totient is φ = 897462720.

The previous prime is 1215314417. The next prime is 1215314431. The reversal of 1215314425 is 5244135121.

It can be written as a sum of positive squares in 6 ways, for example, as 194128489 + 1021185936 = 13933^2 + 31956^2 .

It is not a de Polignac number, because 1215314425 - 2³ = 1215314417 is a prime.

It is a super-2 number, since 2×1215314425² = 2953978303226161250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1215314393 and 1215314402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1869390 + ... + 1870039.

Almost surely, 2^1215314425 is an apocalyptic number.

It is an amenable number.

1215314425 is a deficient number, since it is larger than the sum of its proper divisors (407598195).

1215314425 is a wasteful number, since it uses less digits than its factorization.

1215314425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3739452 (or 3739447 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 1215314425 is about 34861.3600566587. The cubic root of 1215314425 is about 1067.1600308300.

Adding to 1215314425 its reverse (5244135121), we get a palindrome (6459449546).

The spelling of 1215314425 in words is "one billion, two hundred fifteen million, three hundred fourteen thousand, four hundred twenty-five".