149819345 has 12 divisors (see below), whose sum is σ = 194677596. Its totient is φ = 110635200.

The previous prime is 149819333. The next prime is 149819359. The reversal of 149819345 is 543918941.

It can be written as a sum of positive squares in 6 ways, for example, as 43151761 + 106667584 = 6569^2 + 10328^2 .

It is not a de Polignac number, because 149819345 - 2²² = 145625041 is a prime.

It is a super-2 number, since 2×149819345² = 44891672272458050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149819296 and 149819305.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87806 + ... + 89495.

It is an arithmetic number, because the mean of its divisors is an integer number (16223133).

Almost surely, 2^149819345 is an apocalyptic number.

It is an amenable number.

149819345 is a deficient number, since it is larger than the sum of its proper divisors (44858251).

149819345 is a wasteful number, since it uses less digits than its factorization.

149819345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177332 (or 177319 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 149819345 is about 12240.0712824722. The cubic root of 149819345 is about 531.1158938083.

The spelling of 149819345 in words is "one hundred forty-nine million, eight hundred nineteen thousand, three hundred forty-five".