1345020626 has 4 divisors (see below), whose sum is σ = 2017530942. Its totient is φ = 672510312.

The previous prime is 1345020619. The next prime is 1345020629. The reversal of 1345020626 is 6260205431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1118969401 + 226051225 = 33451^2 + 15035^2 .

It is not an unprimeable number, because it can be changed into a prime (1345020629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336255155 + ... + 336255158.

Almost surely, 2^1345020626 is an apocalyptic number.

1345020626 is a deficient number, since it is larger than the sum of its proper divisors (672510316).

1345020626 is an equidigital number, since it uses as much as digits as its factorization.

1345020626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672510315.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1345020626 is about 36674.5228462485. The cubic root of 1345020626 is about 1103.8489480596.

The spelling of 1345020626 in words is "one billion, three hundred forty-five million, twenty thousand, six hundred twenty-six".