2121525162 has 16 divisors (see below), whose sum is σ = 4714500480. Its totient is φ = 707175036.

The previous prime is 2121525139. The next prime is 2121525163. The reversal of 2121525162 is 2615251212.

2121525162 is a `hidden beast` number, since 2 + 121 + 525 + 16 + 2 = 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 (2121525163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19643698 + ... + 19643805.

It is an arithmetic number, because the mean of its divisors is an integer number (294656280).

Almost surely, 2^2121525162 is an apocalyptic number.

2121525162 is an abundant number, since it is smaller than the sum of its proper divisors (2592975318).

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

2121525162 is a wasteful number, since it uses less digits than its factorization.

2121525162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39287514 (or 39287508 counting only the distinct ones).

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

The square root of 2121525162 is about 46060.0169561410. The cubic root of 2121525162 is about 1284.9396454062.

Adding to 2121525162 its reverse (2615251212), we get a palindrome (4736776374).

The spelling of 2121525162 in words is "two billion, one hundred twenty-one million, five hundred twenty-five thousand, one hundred sixty-two".