1215465042 has 16 divisors (see below), whose sum is σ = 2651923872. Its totient is φ = 368322720.

The previous prime is 1215465037. The next prime is 1215465089. The reversal of 1215465042 is 2405645121.

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, 9208003 + ... + 9208134.

It is an arithmetic number, because the mean of its divisors is an integer number (165745242).

Almost surely, 2^1215465042 is an apocalyptic number.

1215465042 is an abundant number, since it is smaller than the sum of its proper divisors (1436458830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1215465042 is a wasteful number, since it uses less digits than its factorization.

1215465042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18416153.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1215465042 is about 34863.5202181306. The cubic root of 1215465042 is about 1067.2041142922.

The spelling of 1215465042 in words is "one billion, two hundred fifteen million, four hundred sixty-five thousand, forty-two".