1345026649 has 8 divisors (see below), whose sum is σ = 1359360288. Its totient is φ = 1330754880.

The previous prime is 1345026643. The next prime is 1345026653. The reversal of 1345026649 is 9466205431.

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 1345026649 - 2⁷ = 1345026521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345026643) 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, 28914 + ... + 59380.

It is an arithmetic number, because the mean of its divisors is an integer number (169920036).

Almost surely, 2^1345026649 is an apocalyptic number.

It is an amenable number.

1345026649 is a deficient number, since it is larger than the sum of its proper divisors (14333639).

1345026649 is a wasteful number, since it uses less digits than its factorization.

1345026649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30935.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 1345026649 is about 36674.6049603810. The cubic root of 1345026649 is about 1103.8505957350.

The spelling of 1345026649 in words is "one billion, three hundred forty-five million, twenty-six thousand, six hundred forty-nine".