545121050502131 has 4 divisors (see below), whose sum is σ = 545121124471992. Its totient is φ = 545120976532272.

The previous prime is 545121050502079. The next prime is 545121050502199. The reversal of 545121050502131 is 131205050121545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545121050502131 is a prime.

It is a super-2 number, since 2×545121050502131² (a number of 30 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 = 545121050502091 and 545121050502100.

It is not an unprimeable number, because it can be changed into a prime (545121058502131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24533330 + ... + 41135463.

It is an arithmetic number, because the mean of its divisors is an integer number (136280281117998).

Almost surely, 2^{545121050502131} is an apocalyptic number.

545121050502131 is a deficient number, since it is larger than the sum of its proper divisors (73969861).

545121050502131 is an equidigital number, since it uses as much as digits as its factorization.

545121050502131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73969860.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 545121050502131 in words is "five hundred forty-five trillion, one hundred twenty-one billion, fifty million, five hundred two thousand, one hundred thirty-one".