145000001 has 8 divisors (see below), whose sum is σ = 154115520. Its totient is φ = 136032912.

The previous prime is 144999991. The next prime is 145000033. The reversal of 145000001 is 100000541.

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 145000001 - 2¹⁰ = 144998977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145000061) 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, 35090 + ... + 39003.

It is an arithmetic number, because the mean of its divisors is an integer number (19264440).

Almost surely, 2^145000001 is an apocalyptic number.

It is an amenable number.

145000001 is a deficient number, since it is larger than the sum of its proper divisors (9115519).

145000001 is a wasteful number, since it uses less digits than its factorization.

145000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74215.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 145000001 is about 12041.5946203150. The cubic root of 145000001 is about 525.3587884570.

Adding to 145000001 its reverse (100000541), we get a palindrome (245000542).

The spelling of 145000001 in words is "one hundred forty-five million, one", and thus it is an aban number.