149271345 has 24 divisors (see below), whose sum is σ = 259497576. Its totient is φ = 79377408.

The previous prime is 149271307. The next prime is 149271347. The reversal of 149271345 is 543172941.

149271345 is a `hidden beast` number, since 1 + 49 + 271 + 345 = 666.

149271345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 992016 + 148279329 = 996^2 + 12177^2 .

It is not a de Polignac number, because 149271345 - 2⁹ = 149270833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149271347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11187 + ... + 20583.

It is an arithmetic number, because the mean of its divisors is an integer number (10812399).

Almost surely, 2^149271345 is an apocalyptic number.

149271345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149271345 is a deficient number, since it is larger than the sum of its proper divisors (110226231).

149271345 is a wasteful number, since it uses less digits than its factorization.

149271345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9761 (or 9758 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 149271345 is about 12217.6652843332. The cubic root of 149271345 is about 530.4675416298.

The spelling of 149271345 in words is "one hundred forty-nine million, two hundred seventy-one thousand, three hundred forty-five".