133001145 has 12 divisors (see below), whose sum is σ = 230535396. Its totient is φ = 70933920.

The previous prime is 133001123. The next prime is 133001207. The reversal of 133001145 is 541100331.

It can be written as a sum of positive squares in 2 ways, for example, as 84934656 + 48066489 = 9216^2 + 6933^2 .

It is not a de Polignac number, because 133001145 - 2¹⁰ = 133000121 is a prime.

It is a super-2 number, since 2×133001145² = 35378609142622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1477746 + ... + 1477835.

It is an arithmetic number, because the mean of its divisors is an integer number (19211283).

Almost surely, 2^133001145 is an apocalyptic number.

133001145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133001145 is a deficient number, since it is larger than the sum of its proper divisors (97534251).

133001145 is a wasteful number, since it uses less digits than its factorization.

133001145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955592 (or 2955589 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 133001145 is about 11532.6122366097. The cubic root of 133001145 is about 510.4483370122.

Adding to 133001145 its reverse (541100331), we get a palindrome (674101476).

The spelling of 133001145 in words is "one hundred thirty-three million, one thousand, one hundred forty-five".