145145201 has 8 divisors (see below), whose sum is σ = 153800064. Its totient is φ = 136503360.

The previous prime is 145145159. The next prime is 145145213. The reversal of 145145201 is 102541541.

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 145145201 - 2¹⁴ = 145128817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145145281) 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, 28796 + ... + 33458.

It is an arithmetic number, because the mean of its divisors is an integer number (19225008).

Almost surely, 2^145145201 is an apocalyptic number.

It is an amenable number.

145145201 is a deficient number, since it is larger than the sum of its proper divisors (8654863).

145145201 is a wasteful number, since it uses less digits than its factorization.

145145201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6511.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 145145201 is about 12047.6222135324. The cubic root of 145145201 is about 525.5340910944.

Adding to 145145201 its reverse (102541541), we get a palindrome (247686742).

The spelling of 145145201 in words is "one hundred forty-five million, one hundred forty-five thousand, two hundred one".