145141509 has 8 divisors (see below), whose sum is σ = 196694752. Its totient is φ = 95174640.

The previous prime is 145141501. The next prime is 145141531. The reversal of 145141509 is 905141541.

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

It is not a de Polignac number, because 145141509 - 2³ = 145141501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145141501) 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, 396379 + ... + 396744.

It is an arithmetic number, because the mean of its divisors is an integer number (24586844).

Almost surely, 2^145141509 is an apocalyptic number.

It is an amenable number.

145141509 is a deficient number, since it is larger than the sum of its proper divisors (51553243).

145141509 is an equidigital number, since it uses as much as digits as its factorization.

145141509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793187.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 145141509 is about 12047.4689873019. The cubic root of 145141509 is about 525.5296351237.

The spelling of 145141509 in words is "one hundred forty-five million, one hundred forty-one thousand, five hundred nine".