340013131 has 4 divisors (see below), whose sum is σ = 341268064. Its totient is φ = 338758200.

The previous prime is 340013129. The next prime is 340013137. The reversal of 340013131 is 131310043.

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 340013131 - 2¹ = 340013129 is a prime.

It is a super-2 number, since 2×340013131² = 231217858504846322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340013137) 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, 627060 + ... + 627601.

It is an arithmetic number, because the mean of its divisors is an integer number (85317016).

Almost surely, 2^340013131 is an apocalyptic number.

340013131 is a deficient number, since it is larger than the sum of its proper divisors (1254933).

340013131 is a wasteful number, since it uses less digits than its factorization.

340013131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254932.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 340013131 is about 18439.4449753782. Note that the first 3 decimals coincide. The cubic root of 340013131 is about 697.9621896963.

Adding to 340013131 its reverse (131310043), we get a palindrome (471323174).

The spelling of 340013131 in words is "three hundred forty million, thirteen thousand, one hundred thirty-one".