149154443 has 2 divisors, whose sum is σ = 149154444. Its totient is φ = 149154442.

The previous prime is 149154431. The next prime is 149154451. The reversal of 149154443 is 344451941.

It is a strong prime.

It is an emirp because it is prime and its reverse (344451941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149154443 - 2¹² = 149150347 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (149156443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74577221 + 74577222.

It is an arithmetic number, because the mean of its divisors is an integer number (74577222).

Almost surely, 2^149154443 is an apocalyptic number.

149154443 is a deficient number, since it is larger than the sum of its proper divisors (1).

149154443 is an equidigital number, since it uses as much as digits as its factorization.

149154443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 149154443 is about 12212.8802090252. The cubic root of 149154443 is about 530.3290267393.

The spelling of 149154443 in words is "one hundred forty-nine million, one hundred fifty-four thousand, four hundred forty-three".