1045142405 has 16 divisors (see below), whose sum is σ = 1397839680. Its totient is φ = 745512192.

The previous prime is 1045142383. The next prime is 1045142407. The reversal of 1045142405 is 5042415401.

It is a cyclic number.

It is not a de Polignac number, because 1045142405 - 2¹⁸ = 1044880261 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045142407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321959 + ... + 325188.

It is an arithmetic number, because the mean of its divisors is an integer number (87364980).

Almost surely, 2^1045142405 is an apocalyptic number.

It is an amenable number.

1045142405 is a deficient number, since it is larger than the sum of its proper divisors (352697275).

1045142405 is a wasteful number, since it uses less digits than its factorization.

1045142405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647188.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1045142405 is about 32328.6622828721. The cubic root of 1045142405 is about 1014.8265551707.

Adding to 1045142405 its reverse (5042415401), we get a palindrome (6087557806).

The spelling of 1045142405 in words is "one billion, forty-five million, one hundred forty-two thousand, four hundred five".