145641459 has 8 divisors (see below), whose sum is σ = 194515200. Its totient is φ = 96931016.

The previous prime is 145641449. The next prime is 145641487. The reversal of 145641459 is 954146541.

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

It is a cyclic number.

It is not a de Polignac number, because 145641459 - 2⁴ = 145641443 is a prime.

It is a super-2 number, since 2×145641459² = 42422869159297362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145641409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38727 + ... + 42320.

It is an arithmetic number, because the mean of its divisors is an integer number (24314400).

Almost surely, 2^145641459 is an apocalyptic number.

145641459 is a deficient number, since it is larger than the sum of its proper divisors (48873741).

145641459 is an equidigital number, since it uses as much as digits as its factorization.

145641459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81649.

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

The square root of 145641459 is about 12068.2003215061. The cubic root of 145641459 is about 526.1323513858.

The spelling of 145641459 in words is "one hundred forty-five million, six hundred forty-one thousand, four hundred fifty-nine".