133154645 has 8 divisors (see below), whose sum is σ = 172076856. Its totient is φ = 98329536.

The previous prime is 133154629. The next prime is 133154653. The reversal of 133154645 is 546451331.

It can be written as a sum of positive squares in 4 ways, for example, as 398161 + 132756484 = 631^2 + 11522^2 .

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 133154645 - 2⁴ = 133154629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024202 + ... + 1024331.

It is an arithmetic number, because the mean of its divisors is an integer number (21509607).

Almost surely, 2^133154645 is an apocalyptic number.

It is an amenable number.

133154645 is a deficient number, since it is larger than the sum of its proper divisors (38922211).

133154645 is a wasteful number, since it uses less digits than its factorization.

133154645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048551.

The product of its digits is 21600, while the sum is 32.

The square root of 133154645 is about 11539.2653578987. The cubic root of 133154645 is about 510.6446353114.

The spelling of 133154645 in words is "one hundred thirty-three million, one hundred fifty-four thousand, six hundred forty-five".