1345746771 has 16 divisors (see below), whose sum is σ = 1996108800. Its totient is φ = 896080104.

The previous prime is 1345746749. The next prime is 1345746781. The reversal of 1345746771 is 1776475431.

1345746771 is a `hidden beast` number, since 1 + 3 + 4 + 574 + 6 + 7 + 71 = 666.

It is not a de Polignac number, because 1345746771 - 2⁵ = 1345746739 is a prime.

It is a super-2 number, since 2×1345746771² = 3622068743313852882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1345746781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7051 + ... + 52356.

It is an arithmetic number, because the mean of its divisors is an integer number (124756800).

Almost surely, 2^1345746771 is an apocalyptic number.

1345746771 is a deficient number, since it is larger than the sum of its proper divisors (650362029).

1345746771 is an equidigital number, since it uses as much as digits as its factorization.

1345746771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60255 (or 60249 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 1345746771 is about 36684.4213665692. The cubic root of 1345746771 is about 1104.0475596832.

The spelling of 1345746771 in words is "one billion, three hundred forty-five million, seven hundred forty-six thousand, seven hundred seventy-one".