403540145 has 16 divisors (see below), whose sum is σ = 519359040. Its totient is φ = 300066624.

The previous prime is 403540103. The next prime is 403540187. The reversal of 403540145 is 541045304.

It is an interprime number because it is at equal distance from previous prime (403540103) and next prime (403540187).

It is a cyclic number.

It is not a de Polignac number, because 403540145 - 2¹⁴ = 403523761 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35039 + ... + 45108.

It is an arithmetic number, because the mean of its divisors is an integer number (32459940).

Almost surely, 2^403540145 is an apocalyptic number.

It is an amenable number.

403540145 is a deficient number, since it is larger than the sum of its proper divisors (115818895).

403540145 is a wasteful number, since it uses less digits than its factorization.

403540145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80224.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 403540145 is about 20088.3086644944. The cubic root of 403540145 is about 738.9735861059.

Adding to 403540145 its reverse (541045304), we get a palindrome (944585449).

The spelling of 403540145 in words is "four hundred three million, five hundred forty thousand, one hundred forty-five".