340015129 has 2 divisors, whose sum is σ = 340015130. Its totient is φ = 340015128.

The previous prime is 340015103. The next prime is 340015189. The reversal of 340015129 is 921510043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283989904 + 56025225 = 16852^2 + 7485^2 .

It is a cyclic number.

It is not a de Polignac number, because 340015129 - 2⁷ = 340015001 is a prime.

It is a super-2 number, since 2×340015129² = 231220575897773282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (340015189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170007564 + 170007565.

It is an arithmetic number, because the mean of its divisors is an integer number (170007565).

Almost surely, 2^340015129 is an apocalyptic number.

It is an amenable number.

340015129 is a deficient number, since it is larger than the sum of its proper divisors (1).

340015129 is an equidigital number, since it uses as much as digits as its factorization.

340015129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 340015129 is about 18439.4991526343. The cubic root of 340015129 is about 697.9635568256.

The spelling of 340015129 in words is "three hundred forty million, fifteen thousand, one hundred twenty-nine".