154252613 has 2 divisors, whose sum is σ = 154252614. Its totient is φ = 154252612.

The previous prime is 154252589. The next prime is 154252639. The reversal of 154252613 is 316252451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135443044 + 18809569 = 11638^2 + 4337^2 .

It is an emirp because it is prime and its reverse (316252451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154252613 - 2²² = 150058309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154252643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77126306 + 77126307.

It is an arithmetic number, because the mean of its divisors is an integer number (77126307).

Almost surely, 2^154252613 is an apocalyptic number.

It is an amenable number.

154252613 is a deficient number, since it is larger than the sum of its proper divisors (1).

154252613 is an equidigital number, since it uses as much as digits as its factorization.

154252613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 154252613 is about 12419.8475433477. The cubic root of 154252613 is about 536.3037617415.

The spelling of 154252613 in words is "one hundred fifty-four million, two hundred fifty-two thousand, six hundred thirteen".