145641446 has 8 divisors (see below), whose sum is σ = 219082104. Its totient is φ = 72614080.

The previous prime is 145641443. The next prime is 145641449. The reversal of 145641446 is 644146541.

It is an interprime number because it is at equal distance from previous prime (145641443) and next prime (145641449).

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

It is a super-2 number, since 2×145641446² = 42422861585941832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145641443) 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, 102440 + ... + 103851.

It is an arithmetic number, because the mean of its divisors is an integer number (27385263).

Almost surely, 2^145641446 is an apocalyptic number.

145641446 is a deficient number, since it is larger than the sum of its proper divisors (73440658).

145641446 is a wasteful number, since it uses less digits than its factorization.

145641446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206646.

The product of its digits is 46080, while the sum is 35.

The square root of 145641446 is about 12068.1997829005. The cubic root of 145641446 is about 526.1323357315.

Adding to 145641446 its reverse (644146541), we get a palindrome (789787987).

The spelling of 145641446 in words is "one hundred forty-five million, six hundred forty-one thousand, four hundred forty-six".