423016545 has 32 divisors (see below), whose sum is σ = 798474240. Its totient is φ = 187139520.

The previous prime is 423016541. The next prime is 423016547. The reversal of 423016545 is 545610324.

It is not a de Polignac number, because 423016545 - 2² = 423016541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423016541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61725 + ... + 68234.

It is an arithmetic number, because the mean of its divisors is an integer number (24952320).

Almost surely, 2^423016545 is an apocalyptic number.

It is an amenable number.

423016545 is a deficient number, since it is larger than the sum of its proper divisors (375457695).

423016545 is a wasteful number, since it uses less digits than its factorization.

423016545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130005.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 423016545 is about 20567.3660199842. The cubic root of 423016545 is about 750.6758618758.

Adding to 423016545 its reverse (545610324), we get a palindrome (968626869).

The spelling of 423016545 in words is "four hundred twenty-three million, sixteen thousand, five hundred forty-five".