145211445 has 24 divisors (see below), whose sum is σ = 255461856. Its totient is φ = 76288608.

The previous prime is 145211431. The next prime is 145211447. The reversal of 145211445 is 544112541.

145211445 is a `hidden beast` number, since 1 + 4 + 5 + 211 + 445 = 666.

It is not a de Polignac number, because 145211445 - 2⁷ = 145211317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145211447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21067 + ... + 27096.

It is an arithmetic number, because the mean of its divisors is an integer number (10644244).

Almost surely, 2^145211445 is an apocalyptic number.

145211445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145211445 is a deficient number, since it is larger than the sum of its proper divisors (110250411).

145211445 is a wasteful number, since it uses less digits than its factorization.

145211445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48241 (or 48238 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 145211445 is about 12050.3711561097. The cubic root of 145211445 is about 525.6140298619.

Adding to 145211445 its reverse (544112541), we get a palindrome (689323986).

The spelling of 145211445 in words is "one hundred forty-five million, two hundred eleven thousand, four hundred forty-five".