2145510133546 has 12 divisors (see below), whose sum is σ = 3484867051782. Its totient is φ = 990235446096.

The previous prime is 2145510133511. The next prime is 2145510133553. The reversal of 2145510133546 is 6453310155412.

It can be written as a sum of positive squares in 3 ways, for example, as 998222790321 + 1147287343225 = 999111^2 + 1071115^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2145510133499 and 2145510133508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3173831221 + ... + 3173831896.

Almost surely, 2^{2145510133546} is an apocalyptic number.

2145510133546 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2145510133546 is a deficient number, since it is larger than the sum of its proper divisors (1339356918236).

2145510133546 is a wasteful number, since it uses less digits than its factorization.

2145510133546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6347663145 (or 6347663132 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

Adding to 2145510133546 its reverse (6453310155412), we get a palindrome (8598820288958).

The spelling of 2145510133546 in words is "two trillion, one hundred forty-five billion, five hundred ten million, one hundred thirty-three thousand, five hundred forty-six".