149643353 has 4 divisors (see below), whose sum is σ = 149675748. Its totient is φ = 149610960.

The previous prime is 149643331. The next prime is 149643371. The reversal of 149643353 is 353346941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79619929 + 70023424 = 8923^2 + 8368^2 .

It is a cyclic number.

It is not a de Polignac number, because 149643353 - 2¹⁶ = 149577817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149643383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7826 + ... + 18987.

It is an arithmetic number, because the mean of its divisors is an integer number (37418937).

Almost surely, 2^149643353 is an apocalyptic number.

It is an amenable number.

149643353 is a deficient number, since it is larger than the sum of its proper divisors (32395).

149643353 is an equidigital number, since it uses as much as digits as its factorization.

149643353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32394.

The product of its digits is 116640, while the sum is 38.

The square root of 149643353 is about 12232.8799961415. The cubic root of 149643353 is about 530.9078459698.

The spelling of 149643353 in words is "one hundred forty-nine million, six hundred forty-three thousand, three hundred fifty-three".