2145542150 has 12 divisors (see below), whose sum is σ = 3990708492. Its totient is φ = 858216840.

The previous prime is 2145542123. The next prime is 2145542153. The reversal of 2145542150 is 512455412.

It is a super-2 number, since 2×2145542150² = 9206702234853245000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145542153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21455372 + ... + 21455471.

It is an arithmetic number, because the mean of its divisors is an integer number (332559041).

Almost surely, 2^2145542150 is an apocalyptic number.

2145542150 is a deficient number, since it is larger than the sum of its proper divisors (1845166342).

2145542150 is a wasteful number, since it uses less digits than its factorization.

2145542150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42910855 (or 42910850 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 2145542150 is about 46319.9973013816. The cubic root of 2145542150 is about 1289.7702353039.

Adding to 2145542150 its reverse (512455412), we get a palindrome (2657997562).

The spelling of 2145542150 in words is "two billion, one hundred forty-five million, five hundred forty-two thousand, one hundred fifty".