154955443 has 2 divisors, whose sum is σ = 154955444. Its totient is φ = 154955442.

The previous prime is 154955401. The next prime is 154955473. The reversal of 154955443 is 344559451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 154955443 - 2²⁵ = 121401011 is a prime.

It is a super-2 number, since 2×154955443² = 48022378630652498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154955396 and 154955405.

It is not a weakly prime, because it can be changed into another prime (154955473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77477721 + 77477722.

It is an arithmetic number, because the mean of its divisors is an integer number (77477722).

Almost surely, 2^154955443 is an apocalyptic number.

154955443 is a deficient number, since it is larger than the sum of its proper divisors (1).

154955443 is an equidigital number, since it uses as much as digits as its factorization.

154955443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 40.

The square root of 154955443 is about 12448.1100171873. The cubic root of 154955443 is about 537.1170582638.

The spelling of 154955443 in words is "one hundred fifty-four million, nine hundred fifty-five thousand, four hundred forty-three".