2142001522 has 4 divisors (see below), whose sum is σ = 3213002286. Its totient is φ = 1071000760.

The previous prime is 2142001507. The next prime is 2142001553. The reversal of 2142001522 is 2251002412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2080363321 + 61638201 = 45611^2 + 7851^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2142001522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535500379 + ... + 535500382.

Almost surely, 2^2142001522 is an apocalyptic number.

2142001522 is a deficient number, since it is larger than the sum of its proper divisors (1071000764).

2142001522 is a wasteful number, since it uses less digits than its factorization.

2142001522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071000763.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2142001522 is about 46281.7623043894. The cubic root of 2142001522 is about 1289.0603741801.

Adding to 2142001522 its reverse (2251002412), we get a palindrome (4393003934).

The spelling of 2142001522 in words is "two billion, one hundred forty-two million, one thousand, five hundred twenty-two".