154515133 has 2 divisors, whose sum is σ = 154515134. Its totient is φ = 154515132.

The previous prime is 154515113. The next prime is 154515143. The reversal of 154515133 is 331515451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78092569 + 76422564 = 8837^2 + 8742^2 .

It is an emirp because it is prime and its reverse (331515451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154515133 - 2¹³ = 154506941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154515113) by changing a digit.

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 as a sum of consecutive naturals, namely, 77257566 + 77257567.

It is an arithmetic number, because the mean of its divisors is an integer number (77257567).

Almost surely, 2^154515133 is an apocalyptic number.

It is an amenable number.

154515133 is a deficient number, since it is larger than the sum of its proper divisors (1).

154515133 is an equidigital number, since it uses as much as digits as its factorization.

154515133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4500, while the sum is 28.

The square root of 154515133 is about 12430.4116182852. The cubic root of 154515133 is about 536.6078315107.

The spelling of 154515133 in words is "one hundred fifty-four million, five hundred fifteen thousand, one hundred thirty-three".