145105401 has 8 divisors (see below), whose sum is σ = 221113024. Its totient is φ = 82917360.

The previous prime is 145105369. The next prime is 145105417. The reversal of 145105401 is 104501541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145105401 - 2⁵ = 145105369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6909781 = 145105401 / (1 + 4 + 5 + 1 + 0 + 5 + 4 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145105481) by changing a digit.

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, 3454870 + ... + 3454911.

It is an arithmetic number, because the mean of its divisors is an integer number (27639128).

Almost surely, 2^145105401 is an apocalyptic number.

It is an amenable number.

145105401 is a deficient number, since it is larger than the sum of its proper divisors (76007623).

145105401 is an equidigital number, since it uses as much as digits as its factorization.

145105401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6909791.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 145105401 is about 12045.9703220621. The cubic root of 145105401 is about 525.4860514560.

Adding to 145105401 its reverse (104501541), we get a palindrome (249606942).

The spelling of 145105401 in words is "one hundred forty-five million, one hundred five thousand, four hundred one".