1676403145 has 12 divisors (see below), whose sum is σ = 2083449420. Its totient is φ = 1294873664.

The previous prime is 1676403143. The next prime is 1676403173. The reversal of 1676403145 is 5413046761.

It can be written as a sum of positive squares in 6 ways, for example, as 12089529 + 1664313616 = 3477^2 + 40796^2 .

It is not a de Polignac number, because 1676403145 - 2¹ = 1676403143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1676403143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195130 + ... + 203539.

It is an arithmetic number, because the mean of its divisors is an integer number (173620785).

Almost surely, 2^1676403145 is an apocalyptic number.

It is an amenable number.

1676403145 is a deficient number, since it is larger than the sum of its proper divisors (407046275).

1676403145 is an equidigital number, since it uses as much as digits as its factorization.

1676403145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398732 (or 398703 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1676403145 is about 40943.9024153780. The cubic root of 1676403145 is about 1187.9353944714.

The spelling of 1676403145 in words is "one billion, six hundred seventy-six million, four hundred three thousand, one hundred forty-five".