340015143 has 16 divisors (see below), whose sum is σ = 488962656. Its totient is φ = 208924800.

The previous prime is 340015129. The next prime is 340015189. The reversal of 340015143 is 341510043.

It is not a de Polignac number, because 340015143 - 2⁸ = 340014887 is a prime.

It is a super-2 number, since 2×340015143² = 231220594938620898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340015103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21121 + ... + 33557.

It is an arithmetic number, because the mean of its divisors is an integer number (30560166).

Almost surely, 2^340015143 is an apocalyptic number.

340015143 is a deficient number, since it is larger than the sum of its proper divisors (148947513).

340015143 is a wasteful number, since it uses less digits than its factorization.

340015143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13154.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 340015143 is about 18439.4995322541. The cubic root of 340015143 is about 697.9635664051.

Adding to 340015143 its reverse (341510043), we get a palindrome (681525186).

The spelling of 340015143 in words is "three hundred forty million, fifteen thousand, one hundred forty-three".