145572841 has 2 divisors, whose sum is σ = 145572842. Its totient is φ = 145572840.

The previous prime is 145572827. The next prime is 145572859. The reversal of 145572841 is 148275541.

145572841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84107241 + 61465600 = 9171^2 + 7840^2 .

It is an emirp because it is prime and its reverse (148275541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145572841 - 2⁵ = 145572809 is a prime.

It is a super-2 number, since 2×145572841² = 42382904073622562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145572841.

It is not a weakly prime, because it can be changed into another prime (145572811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72786420 + 72786421.

It is an arithmetic number, because the mean of its divisors is an integer number (72786421).

Almost surely, 2^145572841 is an apocalyptic number.

It is an amenable number.

145572841 is a deficient number, since it is larger than the sum of its proper divisors (1).

145572841 is an equidigital number, since it uses as much as digits as its factorization.

145572841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44800, while the sum is 37.

The square root of 145572841 is about 12065.3570606095. The cubic root of 145572841 is about 526.0497104922.

The spelling of 145572841 in words is "one hundred forty-five million, five hundred seventy-two thousand, eight hundred forty-one".