340142155 has 8 divisors (see below), whose sum is σ = 411287184. Its totient is φ = 270036000.

The previous prime is 340142129. The next prime is 340142167. The reversal of 340142155 is 551241043.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 340142155 - 2⁹ = 340141643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 258996 + ... + 260305.

It is an arithmetic number, because the mean of its divisors is an integer number (51410898).

Almost surely, 2^340142155 is an apocalyptic number.

340142155 is a deficient number, since it is larger than the sum of its proper divisors (71145029).

340142155 is a wasteful number, since it uses less digits than its factorization.

340142155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519437.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 340142155 is about 18442.9432304066. The cubic root of 340142155 is about 698.0504632333.

Adding to 340142155 its reverse (551241043), we get a palindrome (891383198).

The spelling of 340142155 in words is "three hundred forty million, one hundred forty-two thousand, one hundred fifty-five".