145156449 has 8 divisors (see below), whose sum is σ = 194934880. Its totient is φ = 96074496.

The previous prime is 145156399. The next prime is 145156457. The reversal of 145156449 is 944651541.

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

It is not a de Polignac number, because 145156449 - 2⁷ = 145156321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145151449) 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, 173632 + ... + 174465.

It is an arithmetic number, because the mean of its divisors is an integer number (24366860).

Almost surely, 2^145156449 is an apocalyptic number.

It is an amenable number.

145156449 is a deficient number, since it is larger than the sum of its proper divisors (49778431).

145156449 is a wasteful number, since it uses less digits than its factorization.

145156449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348239.

The product of its digits is 86400, while the sum is 39.

The square root of 145156449 is about 12048.0890185954. The cubic root of 145156449 is about 525.5476661322.

The spelling of 145156449 in words is "one hundred forty-five million, one hundred fifty-six thousand, four hundred forty-nine".