1346125631 has 4 divisors (see below), whose sum is σ = 1347116064. Its totient is φ = 1345135200.

The previous prime is 1346125619. The next prime is 1346125633. The reversal of 1346125631 is 1365216431.

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

It is a cyclic number.

It is not a de Polignac number, because 1346125631 - 2¹⁰ = 1346124607 is a prime.

It is a super-2 number, since 2×1346125631² = 3624108428870296322, 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 (1346125633) 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, 493175 + ... + 495896.

It is an arithmetic number, because the mean of its divisors is an integer number (336779016).

Almost surely, 2^1346125631 is an apocalyptic number.

1346125631 is a deficient number, since it is larger than the sum of its proper divisors (990433).

1346125631 is an equidigital number, since it uses as much as digits as its factorization.

1346125631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990432.

The product of its digits is 12960, while the sum is 32.

The square root of 1346125631 is about 36689.5847755191. The cubic root of 1346125631 is about 1104.1511552535.

The spelling of 1346125631 in words is "one billion, three hundred forty-six million, one hundred twenty-five thousand, six hundred thirty-one".