154955473 has 2 divisors, whose sum is σ = 154955474. Its totient is φ = 154955472.

The previous prime is 154955443. The next prime is 154955477. The reversal of 154955473 is 374559451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106750224 + 48205249 = 10332^2 + 6943^2 .

It is a cyclic number.

It is not a de Polignac number, because 154955473 - 2¹³ = 154947281 is a prime.

It is a super-2 number, since 2×154955473² = 48022397225307458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154955477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77477736 + 77477737.

It is an arithmetic number, because the mean of its divisors is an integer number (77477737).

Almost surely, 2^154955473 is an apocalyptic number.

It is an amenable number.

154955473 is a deficient number, since it is larger than the sum of its proper divisors (1).

154955473 is an equidigital number, since it uses as much as digits as its factorization.

154955473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 43.

The square root of 154955473 is about 12448.1112221895. Note that the first 3 decimals coincide. The cubic root of 154955473 is about 537.1170929265.

The spelling of 154955473 in words is "one hundred fifty-four million, nine hundred fifty-five thousand, four hundred seventy-three".