1040042145 has 8 divisors (see below), whose sum is σ = 1664067456. Its totient is φ = 554689136.

The previous prime is 1040042137. The next prime is 1040042149. The reversal of 1040042145 is 5412400401.

It is a happy number.

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 1040042145 - 2³ = 1040042137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1040042149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34668057 + ... + 34668086.

It is an arithmetic number, because the mean of its divisors is an integer number (208008432).

Almost surely, 2^1040042145 is an apocalyptic number.

1040042145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1040042145 is a deficient number, since it is larger than the sum of its proper divisors (624025311).

1040042145 is an equidigital number, since it uses as much as digits as its factorization.

1040042145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69336151.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1040042145 is about 32249.6844170606. The cubic root of 1040042145 is about 1013.1730894055.

Adding to 1040042145 its reverse (5412400401), we get a palindrome (6452442546).

The spelling of 1040042145 in words is "one billion, forty million, forty-two thousand, one hundred forty-five".