154564013 has 2 divisors, whose sum is σ = 154564014. Its totient is φ = 154564012.

The previous prime is 154564001. The next prime is 154564021. The reversal of 154564013 is 310465451.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112741924 + 41822089 = 10618^2 + 6467^2 .

It is a cyclic number.

It is not a de Polignac number, because 154564013 - 2²⁰ = 153515437 is a prime.

It is a super-2 number, since 2×154564013² = 47780068229328338, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154564213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77282006 + 77282007.

It is an arithmetic number, because the mean of its divisors is an integer number (77282007).

Almost surely, 2^154564013 is an apocalyptic number.

It is an amenable number.

154564013 is a deficient number, since it is larger than the sum of its proper divisors (1).

154564013 is an equidigital number, since it uses as much as digits as its factorization.

154564013 is an evil number, because the sum of its binary digits is even.

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

The square root of 154564013 is about 12432.3776084866. The cubic root of 154564013 is about 536.6644098427.

The spelling of 154564013 in words is "one hundred fifty-four million, five hundred sixty-four thousand, thirteen".