2145540002 has 32 divisors (see below), whose sum is σ = 3522657600. Its totient is φ = 976183488.

The previous prime is 2145539987. The next prime is 2145540043. The reversal of 2145540002 is 2000455412.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2145540002.

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 in 15 ways as a sum of consecutive naturals, for example, 212153 + ... + 222035.

It is an arithmetic number, because the mean of its divisors is an integer number (110083050).

Almost surely, 2^2145540002 is an apocalyptic number.

2145540002 is a deficient number, since it is larger than the sum of its proper divisors (1377117598).

2145540002 is a wasteful number, since it uses less digits than its factorization.

2145540002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10130.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2145540002 is about 46319.9741148460. The cubic root of 2145540002 is about 1289.7698048879.

Adding to 2145540002 its reverse (2000455412), we get a palindrome (4145995414).

The spelling of 2145540002 in words is "two billion, one hundred forty-five million, five hundred forty thousand, two".