40300145 has 8 divisors (see below), whose sum is σ = 48505704. Its totient is φ = 32143104.

The previous prime is 40300129. The next prime is 40300151. The reversal of 40300145 is 54100304.

It can be written as a sum of positive squares in 4 ways, for example, as 2637376 + 37662769 = 1624^2 + 6137^2 .

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 40300145 - 2⁴ = 40300129 is a prime.

It is a Duffinian number.

It is a Curzon 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, 10274 + ... + 13643.

It is an arithmetic number, because the mean of its divisors is an integer number (6063213).

Almost surely, 2^40300145 is an apocalyptic number.

It is an amenable number.

40300145 is a deficient number, since it is larger than the sum of its proper divisors (8205559).

40300145 is a wasteful number, since it uses less digits than its factorization.

40300145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24259.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40300145 is about 6348.2395197409. The cubic root of 40300145 is about 342.8484598909.

Adding to 40300145 its reverse (54100304), we get a palindrome (94400449).

The spelling of 40300145 in words is "forty million, three hundred thousand, one hundred forty-five".