149543045 has 8 divisors (see below), whose sum is σ = 179868696. Its totient is φ = 119356416.

The previous prime is 149543027. The next prime is 149543047. The reversal of 149543045 is 540345941.

It can be written as a sum of positive squares in 4 ways, for example, as 3568321 + 145974724 = 1889^2 + 12082^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149543045 - 2¹⁶ = 149477509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149542996 and 149543014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149543047) 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 7 ways as a sum of consecutive naturals, for example, 32372 + ... + 36701.

It is an arithmetic number, because the mean of its divisors is an integer number (22483587).

Almost surely, 2^149543045 is an apocalyptic number.

It is an amenable number.

149543045 is a deficient number, since it is larger than the sum of its proper divisors (30325651).

149543045 is an equidigital number, since it uses as much as digits as its factorization.

149543045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69511.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 149543045 is about 12228.7793749008. The cubic root of 149543045 is about 530.7891945081.

Adding to 149543045 its reverse (540345941), we get a palindrome (689888986).

The spelling of 149543045 in words is "one hundred forty-nine million, five hundred forty-three thousand, forty-five".