340143551947 has 2 divisors, whose sum is σ = 340143551948. Its totient is φ = 340143551946.

The previous prime is 340143551939. The next prime is 340143552013. The reversal of 340143551947 is 749155341043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340143551947 - 2³ = 340143551939 is a prime.

It is a super-2 number, since 2×340143551947² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340143551897 and 340143551906.

It is not a weakly prime, because it can be changed into another prime (340143551147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170071775973 + 170071775974.

It is an arithmetic number, because the mean of its divisors is an integer number (170071775974).

Almost surely, 2^340143551947 is an apocalyptic number.

340143551947 is a deficient number, since it is larger than the sum of its proper divisors (1).

340143551947 is an equidigital number, since it uses as much as digits as its factorization.

340143551947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 340143551947 in words is "three hundred forty billion, one hundred forty-three million, five hundred fifty-one thousand, nine hundred forty-seven".