672135545 has 32 divisors (see below), whose sum is σ = 901756800. Its totient is φ = 477950976.

The previous prime is 672135533. The next prime is 672135557. The reversal of 672135545 is 545531276.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (672135533) and next prime (672135557).

It is a cyclic number.

It is not a de Polignac number, because 672135545 - 2¹⁰ = 672134521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 672135499 and 672135508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 947651 + ... + 948359.

It is an arithmetic number, because the mean of its divisors is an integer number (28179900).

Almost surely, 2^672135545 is an apocalyptic number.

It is an amenable number.

672135545 is a deficient number, since it is larger than the sum of its proper divisors (229621255).

672135545 is a wasteful number, since it uses less digits than its factorization.

672135545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337.

The product of its digits is 126000, while the sum is 38.

The square root of 672135545 is about 25925.5770427584. The cubic root of 672135545 is about 875.9627150822.

The spelling of 672135545 in words is "six hundred seventy-two million, one hundred thirty-five thousand, five hundred forty-five".