1215054162 has 64 divisors (see below), whose sum is σ = 3089352960. Its totient is φ = 346764672.

The previous prime is 1215054157. The next prime is 1215054163. The reversal of 1215054162 is 2614505121.

1215054162 is a `hidden beast` number, since 12 + 1 + 50 + 541 + 62 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1215054163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 563278 + ... + 565430.

It is an arithmetic number, because the mean of its divisors is an integer number (48271140).

Almost surely, 2^1215054162 is an apocalyptic number.

1215054162 is an abundant number, since it is smaller than the sum of its proper divisors (1874298798).

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

1215054162 is a wasteful number, since it uses less digits than its factorization.

1215054162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3664 (or 3658 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1215054162 is about 34857.6270276678. The cubic root of 1215054162 is about 1067.0838469513.

Adding to 1215054162 its reverse (2614505121), we get a palindrome (3829559283).

The spelling of 1215054162 in words is "one billion, two hundred fifteen million, fifty-four thousand, one hundred sixty-two".