1215045430 has 8 divisors (see below), whose sum is σ = 2187081792. Its totient is φ = 486018168.

The previous prime is 1215045427. The next prime is 1215045431. The reversal of 1215045430 is 345405121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1215045395 and 1215045404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215045431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60752262 + ... + 60752281.

It is an arithmetic number, because the mean of its divisors is an integer number (273385224).

Almost surely, 2^1215045430 is an apocalyptic number.

1215045430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1215045430 is a deficient number, since it is larger than the sum of its proper divisors (972036362).

1215045430 is a wasteful number, since it uses less digits than its factorization.

1215045430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121504550.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1215045430 is about 34857.5017750842. The cubic root of 1215045430 is about 1067.0812907420.

The spelling of 1215045430 in words is "one billion, two hundred fifteen million, forty-five thousand, four hundred thirty".