1346254661 has 4 divisors (see below), whose sum is σ = 1352032812. Its totient is φ = 1340476512.

The previous prime is 1346254649. The next prime is 1346254691. The reversal of 1346254661 is 1664526431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 544288900 + 801965761 = 23330^2 + 28319^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346254661 - 2⁶ = 1346254597 is a prime.

It is a super-2 number, since 2×1346254661² = 3624803224528449842, which contains 22 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 (1346254691) 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, 2888726 + ... + 2889191.

It is an arithmetic number, because the mean of its divisors is an integer number (338008203).

Almost surely, 2^1346254661 is an apocalyptic number.

It is an amenable number.

1346254661 is a deficient number, since it is larger than the sum of its proper divisors (5778151).

1346254661 is an equidigital number, since it uses as much as digits as its factorization.

1346254661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5778150.

The product of its digits is 103680, while the sum is 38.

The square root of 1346254661 is about 36691.3431343144. The cubic root of 1346254661 is about 1104.1864328107.

The spelling of 1346254661 in words is "one billion, three hundred forty-six million, two hundred fifty-four thousand, six hundred sixty-one".