145140445 has 8 divisors (see below), whose sum is σ = 175322880. Its totient is φ = 115342800.

The previous prime is 145140431. The next prime is 145140467. The reversal of 145140445 is 544041541.

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

It is not a de Polignac number, because 145140445 - 2⁹ = 145139933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95365 + ... + 96874.

It is an arithmetic number, because the mean of its divisors is an integer number (21915360).

Almost surely, 2^145140445 is an apocalyptic number.

It is an amenable number.

145140445 is a deficient number, since it is larger than the sum of its proper divisors (30182435).

145140445 is a wasteful number, since it uses less digits than its factorization.

145140445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192395.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 145140445 is about 12047.4248285681. The cubic root of 145140445 is about 525.5283509404.

Adding to 145140445 its reverse (544041541), we get a palindrome (689181986).

The spelling of 145140445 in words is "one hundred forty-five million, one hundred forty thousand, four hundred forty-five".