145376549 has 4 divisors (see below), whose sum is σ = 145412736. Its totient is φ = 145340364.

The previous prime is 145376527. The next prime is 145376563. The reversal of 145376549 is 945673541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 945673541 = 53 ⋅17842897.

It is a cyclic number.

It is not a de Polignac number, because 145376549 - 2²⁴ = 128599333 is a prime.

It is a super-2 number, since 2×145376549² = 42268681998298802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145376849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11189 + ... + 20394.

It is an arithmetic number, because the mean of its divisors is an integer number (36353184).

Almost surely, 2^145376549 is an apocalyptic number.

It is an amenable number.

145376549 is a deficient number, since it is larger than the sum of its proper divisors (36187).

145376549 is an equidigital number, since it uses as much as digits as its factorization.

145376549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36186.

The product of its digits is 453600, while the sum is 44.

The square root of 145376549 is about 12057.2197873307. The cubic root of 145376549 is about 525.8131604236.

The spelling of 145376549 in words is "one hundred forty-five million, three hundred seventy-six thousand, five hundred forty-nine".