145200155 has 8 divisors (see below), whose sum is σ = 177947712. Its totient is φ = 113688448.

The previous prime is 145200149. The next prime is 145200169. The reversal of 145200155 is 551002541.

It is a happy number.

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 145200155 - 2¹⁸ = 144938011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145200155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308702 + ... + 309171.

It is an arithmetic number, because the mean of its divisors is an integer number (22243464).

Almost surely, 2^145200155 is an apocalyptic number.

145200155 is a deficient number, since it is larger than the sum of its proper divisors (32747557).

145200155 is an equidigital number, since it uses as much as digits as its factorization.

145200155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617925.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 145200155 is about 12049.9026967026. The cubic root of 145200155 is about 525.6004075743.

Adding to 145200155 its reverse (551002541), we get a palindrome (696202696).

The spelling of 145200155 in words is "one hundred forty-five million, two hundred thousand, one hundred fifty-five".