2142454150545 has 16 divisors (see below), whose sum is σ = 3429411289920. Its totient is φ = 1142147330624.

The previous prime is 2142454150537. The next prime is 2142454150559. The reversal of 2142454150545 is 5450514542412.

It is a cyclic number.

It is not a de Polignac number, because 2142454150545 - 2³ = 2142454150537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2142454150497 and 2142454150506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30894399 + ... + 30963668.

It is an arithmetic number, because the mean of its divisors is an integer number (214338205620).

Almost surely, 2^{2142454150545} is an apocalyptic number.

It is an amenable number.

2142454150545 is a deficient number, since it is larger than the sum of its proper divisors (1286957139375).

2142454150545 is a wasteful number, since it uses less digits than its factorization.

2142454150545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61860384.

The product of its (nonzero) digits is 640000, while the sum is 42.

Adding to 2142454150545 its reverse (5450514542412), we get a palindrome (7592968692957).

The spelling of 2142454150545 in words is "two trillion, one hundred forty-two billion, four hundred fifty-four million, one hundred fifty thousand, five hundred forty-five".