1040145677 has 4 divisors (see below), whose sum is σ = 1049350620. Its totient is φ = 1030940736.

The previous prime is 1040145653. The next prime is 1040145703. The reversal of 1040145677 is 7765410401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7765410401 = 7 ⋅1109344343.

It can be written as a sum of positive squares in 2 ways, for example, as 289714441 + 750431236 = 17021^2 + 27394^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040145677 - 2¹⁶ = 1040080141 is a prime.

It is a super-3 number, since 3×1040145677³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040145377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4602302 + ... + 4602527.

It is an arithmetic number, because the mean of its divisors is an integer number (262337655).

Almost surely, 2^1040145677 is an apocalyptic number.

It is an amenable number.

1040145677 is a deficient number, since it is larger than the sum of its proper divisors (9204943).

1040145677 is an equidigital number, since it uses as much as digits as its factorization.

1040145677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9204942.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1040145677 is about 32251.2895401099. The cubic root of 1040145677 is about 1013.2067073880.

The spelling of 1040145677 in words is "one billion, forty million, one hundred forty-five thousand, six hundred seventy-seven".