145886441 has 8 divisors (see below), whose sum is σ = 149232264. Its totient is φ = 142571520.

The previous prime is 145886437. The next prime is 145886453. The reversal of 145886441 is 144688541.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6150400 + 139736041 = 2480^2 + 11821^2 .

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 145886441 - 2² = 145886437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145886431) 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, 1961 + ... + 17193.

It is an arithmetic number, because the mean of its divisors is an integer number (18654033).

Almost surely, 2^145886441 is an apocalyptic number.

It is an amenable number.

145886441 is a deficient number, since it is larger than the sum of its proper divisors (3345823).

145886441 is a wasteful number, since it uses less digits than its factorization.

145886441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15451.

The product of its digits is 122880, while the sum is 41.

The square root of 145886441 is about 12078.3459546413. The cubic root of 145886441 is about 526.4271867397.

The spelling of 145886441 in words is "one hundred forty-five million, eight hundred eighty-six thousand, four hundred forty-one".