545120051 has 24 divisors (see below), whose sum is σ = 683822160. Its totient is φ = 431827200.

The previous prime is 545120039. The next prime is 545120063. The reversal of 545120051 is 150021545.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (545120039) and next prime (545120063).

It is a de Polignac number, because none of the positive numbers 2^k-545120051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545119999 and 545120026.

It is not an unprimeable number, because it can be changed into a prime (545120071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31031 + ... + 45311.

It is an arithmetic number, because the mean of its divisors is an integer number (28492590).

Almost surely, 2^545120051 is an apocalyptic number.

545120051 is a deficient number, since it is larger than the sum of its proper divisors (138702109).

545120051 is a wasteful number, since it uses less digits than its factorization.

545120051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14355 (or 14348 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 545120051 is about 23347.8061281997. The cubic root of 545120051 is about 816.8908889992.

Adding to 545120051 its reverse (150021545), we get a palindrome (695141596).

The spelling of 545120051 in words is "five hundred forty-five million, one hundred twenty thousand, fifty-one".