2145141551245 has 96 divisors (see below), whose sum is σ = 3299667808896. Its totient is φ = 1323786240000.

The previous prime is 2145141551237. The next prime is 2145141551321. The reversal of 2145141551245 is 5421551415412.

It is not a de Polignac number, because 2145141551245 - 2³ = 2145141551237 is a prime.

It is a super-2 number, since 2×2145141551245² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2145141551198 and 2145141551207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 112886745 + ... + 112905745.

It is an arithmetic number, because the mean of its divisors is an integer number (34371539676).

Almost surely, 2^{2145141551245} is an apocalyptic number.

It is an amenable number.

2145141551245 is a deficient number, since it is larger than the sum of its proper divisors (1154526257651).

2145141551245 is a wasteful number, since it uses less digits than its factorization.

2145141551245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19451 (or 19444 counting only the distinct ones).

The product of its digits is 160000, while the sum is 40.

Adding to 2145141551245 its reverse (5421551415412), we get a palindrome (7566692966657).

The spelling of 2145141551245 in words is "two trillion, one hundred forty-five billion, one hundred forty-one million, five hundred fifty-one thousand, two hundred forty-five".