1215450245 has 8 divisors (see below), whose sum is σ = 1459814400. Its totient is φ = 971510800.

The previous prime is 1215450227. The next prime is 1215450277. The reversal of 1215450245 is 5420545121.

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

It is not a de Polignac number, because 1215450245 - 2¹² = 1215446149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99845 + ... + 111354.

It is an arithmetic number, because the mean of its divisors is an integer number (182476800).

Almost surely, 2^1215450245 is an apocalyptic number.

It is an amenable number.

1215450245 is a deficient number, since it is larger than the sum of its proper divisors (244364155).

1215450245 is a wasteful number, since it uses less digits than its factorization.

1215450245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212355.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 1215450245 is about 34863.3080042614. The cubic root of 1215450245 is about 1067.1997835813.

Adding to 1215450245 its reverse (5420545121), we get a palindrome (6635995366).

The spelling of 1215450245 in words is "one billion, two hundred fifteen million, four hundred fifty thousand, two hundred forty-five".