149523443 has 2 divisors, whose sum is σ = 149523444. Its totient is φ = 149523442.

The previous prime is 149523343. The next prime is 149523457. The reversal of 149523443 is 344325941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149523443 - 2¹² = 149519347 is a prime.

It is not a weakly prime, because it can be changed into another prime (149523343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74761721 + 74761722.

It is an arithmetic number, because the mean of its divisors is an integer number (74761722).

Almost surely, 2^149523443 is an apocalyptic number.

149523443 is a deficient number, since it is larger than the sum of its proper divisors (1).

149523443 is an equidigital number, since it uses as much as digits as its factorization.

149523443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

The square root of 149523443 is about 12227.9778786192. The cubic root of 149523443 is about 530.7660016666.

The spelling of 149523443 in words is "one hundred forty-nine million, five hundred twenty-three thousand, four hundred forty-three".