1345652131 has 4 divisors (see below), whose sum is σ = 1367712064. Its totient is φ = 1323592200.

The previous prime is 1345652111. The next prime is 1345652177. The reversal of 1345652131 is 1312565431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1312565431 = 41 ⋅32013791.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345652131 is a prime.

It is a super-2 number, since 2×1345652131² = 3621559315329682322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1345652093 and 1345652102.

It is not an unprimeable number, because it can be changed into a prime (1345652111) 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, 11029875 + ... + 11029996.

It is an arithmetic number, because the mean of its divisors is an integer number (341928016).

Almost surely, 2^1345652131 is an apocalyptic number.

1345652131 is a deficient number, since it is larger than the sum of its proper divisors (22059933).

1345652131 is an equidigital number, since it uses as much as digits as its factorization.

1345652131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22059932.

The product of its digits is 10800, while the sum is 31.

The square root of 1345652131 is about 36683.1314230397. The cubic root of 1345652131 is about 1104.0216782636.

The spelling of 1345652131 in words is "one billion, three hundred forty-five million, six hundred fifty-two thousand, one hundred thirty-one".