145424441 has 8 divisors (see below), whose sum is σ = 151200000. Its totient is φ = 139716720.

The previous prime is 145424429. The next prime is 145424459. The reversal of 145424441 is 144424541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145424441 is a prime.

It is a super-2 number, since 2×145424441² = 42296536080324962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145424641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12566 + ... + 21183.

It is an arithmetic number, because the mean of its divisors is an integer number (18900000).

Almost surely, 2^145424441 is an apocalyptic number.

It is an amenable number.

145424441 is a deficient number, since it is larger than the sum of its proper divisors (5775559).

145424441 is a wasteful number, since it uses less digits than its factorization.

145424441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33919.

The product of its digits is 10240, while the sum is 29.

The square root of 145424441 is about 12059.2056537734. The cubic root of 145424441 is about 525.8708943549.

Adding to 145424441 its reverse (144424541), we get a palindrome (289848982).

The spelling of 145424441 in words is "one hundred forty-five million, four hundred twenty-four thousand, four hundred forty-one".