342136305 has 160 divisors (see below), whose sum is σ = 769443840. Its totient is φ = 141834240.

The previous prime is 342136303. The next prime is 342136307. The reversal of 342136305 is 503631243.

It is a happy number.

342136305 is a `hidden beast` number, since 3 + 4 + 21 + 3 + 630 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (342136303) and next prime (342136307).

It is not a de Polignac number, because 342136305 - 2¹ = 342136303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (342136303) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1493931 + ... + 1494159.

It is an arithmetic number, because the mean of its divisors is an integer number (4809024).

Almost surely, 2^342136305 is an apocalyptic number.

342136305 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

342136305 is an abundant number, since it is smaller than the sum of its proper divisors (427307535).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

342136305 is a wasteful number, since it uses less digits than its factorization.

342136305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 342136305 is about 18496.9269069216. The cubic root of 342136305 is about 699.4119585296.

Adding to 342136305 its reverse (503631243), we get a palindrome (845767548).

The spelling of 342136305 in words is "three hundred forty-two million, one hundred thirty-six thousand, three hundred five".