1345506331 has 8 divisors (see below), whose sum is σ = 1453163600. Its totient is φ = 1238442912.

The previous prime is 1345506329. The next prime is 1345506343. The reversal of 1345506331 is 1336055431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1345506331 - 2¹ = 1345506329 is a prime.

It is a super-2 number, since 2×1345506331² = 3620774573522163122, 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 = 1345506293 and 1345506302.

It is not an unprimeable number, because it can be changed into a prime (1345506311) 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 7 ways as a sum of consecutive naturals, for example, 143745 + ... + 152818.

It is an arithmetic number, because the mean of its divisors is an integer number (181645450).

Almost surely, 2^1345506331 is an apocalyptic number.

1345506331 is a deficient number, since it is larger than the sum of its proper divisors (107657269).

1345506331 is a wasteful number, since it uses less digits than its factorization.

1345506331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296925.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 1345506331 is about 36681.1440797585. The cubic root of 1345506331 is about 1103.9818036256.

The spelling of 1345506331 in words is "one billion, three hundred forty-five million, five hundred six thousand, three hundred thirty-one".