145521141 has 8 divisors (see below), whose sum is σ = 196208640. Its totient is φ = 95923872.

The previous prime is 145521137. The next prime is 145521143. The reversal of 145521141 is 141125541.

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

It is not a de Polignac number, because 145521141 - 2² = 145521137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145521143) 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, 272245 + ... + 272778.

It is an arithmetic number, because the mean of its divisors is an integer number (24526080).

Almost surely, 2^145521141 is an apocalyptic number.

It is an amenable number.

145521141 is a deficient number, since it is larger than the sum of its proper divisors (50687499).

145521141 is an equidigital number, since it uses as much as digits as its factorization.

145521141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545115.

The product of its digits is 800, while the sum is 24.

The square root of 145521141 is about 12063.2143726289. The cubic root of 145521141 is about 525.9874278345.

Adding to 145521141 its reverse (141125541), we get a palindrome (286646682).

The spelling of 145521141 in words is "one hundred forty-five million, five hundred twenty-one thousand, one hundred forty-one".