342442157 has 2 divisors, whose sum is σ = 342442158. Its totient is φ = 342442156.

The previous prime is 342442129. The next prime is 342442183. The reversal of 342442157 is 751244243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324684361 + 17757796 = 18019^2 + 4214^2 .

It is a cyclic number.

It is not a de Polignac number, because 342442157 - 2¹⁴ = 342425773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342442117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171221078 + 171221079.

It is an arithmetic number, because the mean of its divisors is an integer number (171221079).

Almost surely, 2^342442157 is an apocalyptic number.

It is an amenable number.

342442157 is a deficient number, since it is larger than the sum of its proper divisors (1).

342442157 is an equidigital number, since it uses as much as digits as its factorization.

342442157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 32.

The square root of 342442157 is about 18505.1927036710. The cubic root of 342442157 is about 699.6203090529.

The spelling of 342442157 in words is "three hundred forty-two million, four hundred forty-two thousand, one hundred fifty-seven".