145441201 has 2 divisors, whose sum is σ = 145441202. Its totient is φ = 145441200.

The previous prime is 145441187. The next prime is 145441223. The reversal of 145441201 is 102144541.

It is an a-pointer prime, because the next prime (145441223) can be obtained adding 145441201 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88830625 + 56610576 = 9425^2 + 7524^2 .

It is a cyclic number.

It is not a de Polignac number, because 145441201 - 2⁷ = 145441073 is a prime.

It is not a weakly prime, because it can be changed into another prime (145441271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72720600 + 72720601.

It is an arithmetic number, because the mean of its divisors is an integer number (72720601).

Almost surely, 2^145441201 is an apocalyptic number.

It is an amenable number.

145441201 is a deficient number, since it is larger than the sum of its proper divisors (1).

145441201 is an equidigital number, since it uses as much as digits as its factorization.

145441201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 145441201 is about 12059.9005385617. The cubic root of 145441201 is about 525.8910955847.

Adding to 145441201 its reverse (102144541), we get a palindrome (247585742).

The spelling of 145441201 in words is "one hundred forty-five million, four hundred forty-one thousand, two hundred one".