545087631 has 8 divisors (see below), whose sum is σ = 792854784. Its totient is φ = 330356120.

The previous prime is 545087629. The next prime is 545087657. The reversal of 545087631 is 136780545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545087631 - 2¹ = 545087629 is a prime.

It is a super-2 number, since 2×545087631² = 594241050938384322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 545087631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545087611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8258871 + ... + 8258936.

It is an arithmetic number, because the mean of its divisors is an integer number (99106848).

Almost surely, 2^545087631 is an apocalyptic number.

545087631 is a deficient number, since it is larger than the sum of its proper divisors (247767153).

545087631 is a wasteful number, since it uses less digits than its factorization.

545087631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16517821.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 545087631 is about 23347.1118342291. Note that the first 3 decimals coincide. The cubic root of 545087631 is about 816.8746943233.

The spelling of 545087631 in words is "five hundred forty-five million, eighty-seven thousand, six hundred thirty-one".