342155146 has 4 divisors (see below), whose sum is σ = 513232722. Its totient is φ = 171077572.

The previous prime is 342155129. The next prime is 342155147. The reversal of 342155146 is 641551243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 641551243 = 71 ⋅9035933.

It can be written as a sum of positive squares in only one way, i.e., 276723225 + 65431921 = 16635^2 + 8089^2 .

It is not an unprimeable number, because it can be changed into a prime (342155147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85538785 + ... + 85538788.

Almost surely, 2^342155146 is an apocalyptic number.

342155146 is a deficient number, since it is larger than the sum of its proper divisors (171077576).

342155146 is a wasteful number, since it uses less digits than its factorization.

342155146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171077575.

The product of its digits is 14400, while the sum is 31.

The square root of 342155146 is about 18497.4362007279. The cubic root of 342155146 is about 699.4247968620.

The spelling of 342155146 in words is "three hundred forty-two million, one hundred fifty-five thousand, one hundred forty-six".