145182449 has 4 divisors (see below), whose sum is σ = 145655664. Its totient is φ = 144709236.

The previous prime is 145182419. The next prime is 145182461. The reversal of 145182449 is 944281541.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145182449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145182409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236147 + ... + 236760.

It is an arithmetic number, because the mean of its divisors is an integer number (36413916).

Almost surely, 2^145182449 is an apocalyptic number.

It is an amenable number.

145182449 is a deficient number, since it is larger than the sum of its proper divisors (473215).

145182449 is an equidigital number, since it uses as much as digits as its factorization.

145182449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473214.

The product of its digits is 46080, while the sum is 38.

The square root of 145182449 is about 12049.1679795744. The cubic root of 145182449 is about 525.5790424476.

The spelling of 145182449 in words is "one hundred forty-five million, one hundred eighty-two thousand, four hundred forty-nine".