340048157 has 2 divisors, whose sum is σ = 340048158. Its totient is φ = 340048156.

The previous prime is 340048151. The next prime is 340048193. The reversal of 340048157 is 751840043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241522681 + 98525476 = 15541^2 + 9926^2 .

It is an emirp because it is prime and its reverse (751840043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340048157 - 2⁸ = 340047901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340048151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170024078 + 170024079.

It is an arithmetic number, because the mean of its divisors is an integer number (170024079).

Almost surely, 2^340048157 is an apocalyptic number.

It is an amenable number.

340048157 is a deficient number, since it is larger than the sum of its proper divisors (1).

340048157 is an equidigital number, since it uses as much as digits as its factorization.

340048157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 340048157 is about 18440.3947083570. The cubic root of 340048157 is about 697.9861554220.

The spelling of 340048157 in words is "three hundred forty million, forty-eight thousand, one hundred fifty-seven".