545012387 has 2 divisors, whose sum is σ = 545012388. Its totient is φ = 545012386.

The previous prime is 545012383. The next prime is 545012411. The reversal of 545012387 is 783210545.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545012387 - 2² = 545012383 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (545012381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272506193 + 272506194.

It is an arithmetic number, because the mean of its divisors is an integer number (272506194).

Almost surely, 2^545012387 is an apocalyptic number.

545012387 is a deficient number, since it is larger than the sum of its proper divisors (1).

545012387 is an equidigital number, since it uses as much as digits as its factorization.

545012387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 545012387 is about 23345.5003587415. The cubic root of 545012387 is about 816.8371054144.

The spelling of 545012387 in words is "five hundred forty-five million, twelve thousand, three hundred eighty-seven".