2145431155043 has 8 divisors (see below), whose sum is σ = 2345682985200. Its totient is φ = 1946048097280.

The previous prime is 2145431154983. The next prime is 2145431155073. The reversal of 2145431155043 is 3405511345412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2145431155043 - 2¹⁰ = 2145431154019 is a prime.

It is a super-2 number, since 2×2145431155043² (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 = 2145431154988 and 2145431155006.

It is not an unprimeable number, because it can be changed into a prime (2145431155073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217187930 + ... + 217197807.

It is an arithmetic number, because the mean of its divisors is an integer number (293210373150).

Almost surely, 2^{2145431155043} is an apocalyptic number.

2145431155043 is a deficient number, since it is larger than the sum of its proper divisors (200251830157).

2145431155043 is a wasteful number, since it uses less digits than its factorization.

2145431155043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434386197.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 2145431155043 in words is "two trillion, one hundred forty-five billion, four hundred thirty-one million, one hundred fifty-five thousand, forty-three".