545250137 has 2 divisors, whose sum is σ = 545250138. Its totient is φ = 545250136.

The previous prime is 545250119. The next prime is 545250143. The reversal of 545250137 is 731052545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 466732816 + 78517321 = 21604^2 + 8861^2 .

It is a cyclic number.

It is not a de Polignac number, because 545250137 - 2⁶ = 545250073 is a prime.

It is a Chen prime.

It is equal to p_28609124 and since 545250137 and 28609124 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (545250107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272625068 + 272625069.

It is an arithmetic number, because the mean of its divisors is an integer number (272625069).

Almost surely, 2^545250137 is an apocalyptic number.

It is an amenable number.

545250137 is a deficient number, since it is larger than the sum of its proper divisors (1).

545250137 is an equidigital number, since it uses as much as digits as its factorization.

545250137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 545250137 is about 23350.5917912159. The cubic root of 545250137 is about 816.9558640545.

The spelling of 545250137 in words is "five hundred forty-five million, two hundred fifty thousand, one hundred thirty-seven".