1346467621 has 4 divisors (see below), whose sum is σ = 1346543200. Its totient is φ = 1346392044.

The previous prime is 1346467601. The next prime is 1346467627. The reversal of 1346467621 is 1267646431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1267646431 = 7487 ⋅169313.

It is a cyclic number.

It is not a de Polignac number, because 1346467621 - 2¹¹ = 1346465573 is a prime.

It is a super-3 number, since 3×1346467621³ (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 (1346467627) 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 in 3 ways as a sum of consecutive naturals, for example, 5350 + ... + 52168.

It is an arithmetic number, because the mean of its divisors is an integer number (336635800).

Almost surely, 2^1346467621 is an apocalyptic number.

It is an amenable number.

1346467621 is a deficient number, since it is larger than the sum of its proper divisors (75579).

1346467621 is an equidigital number, since it uses as much as digits as its factorization.

1346467621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75578.

The product of its digits is 145152, while the sum is 40.

The square root of 1346467621 is about 36694.2450664951. The cubic root of 1346467621 is about 1104.2446523911.

The spelling of 1346467621 in words is "one billion, three hundred forty-six million, four hundred sixty-seven thousand, six hundred twenty-one".