1345266131 has 16 divisors (see below), whose sum is σ = 1486205280. Its totient is φ = 1207495680.

The previous prime is 1345266089. The next prime is 1345266149. The reversal of 1345266131 is 1316625431.

It is a cyclic number.

It is not a de Polignac number, because 1345266131 - 2¹⁰ = 1345265107 is a prime.

It is a super-2 number, since 2×1345266131² = 3619481926431418322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345266191) 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, 541865 + ... + 544341.

It is an arithmetic number, because the mean of its divisors is an integer number (92887830).

Almost surely, 2^1345266131 is an apocalyptic number.

1345266131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1345266131 is a deficient number, since it is larger than the sum of its proper divisors (140939149).

1345266131 is a wasteful number, since it uses less digits than its factorization.

1345266131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094.

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

The square root of 1345266131 is about 36677.8697718393. The cubic root of 1345266131 is about 1103.9161053814.

The spelling of 1345266131 in words is "one billion, three hundred forty-five million, two hundred sixty-six thousand, one hundred thirty-one".