545329491 has 32 divisors (see below), whose sum is σ = 849297408. Its totient is φ = 304819200.

The previous prime is 545329489. The next prime is 545329493. The reversal of 545329491 is 194923545.

It is an interprime number because it is at equal distance from previous prime (545329489) and next prime (545329493).

It is not a de Polignac number, because 545329491 - 2¹ = 545329489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545329493) 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, 193291 + ... + 196091.

It is an arithmetic number, because the mean of its divisors is an integer number (26540544).

Almost surely, 2^545329491 is an apocalyptic number.

545329491 is a deficient number, since it is larger than the sum of its proper divisors (303967917).

545329491 is a wasteful number, since it uses less digits than its factorization.

545329491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011.

The product of its digits is 194400, while the sum is 42.

The square root of 545329491 is about 23352.2909154541. The cubic root of 545329491 is about 816.9954945326.

The spelling of 545329491 in words is "five hundred forty-five million, three hundred twenty-nine thousand, four hundred ninety-one".