342100457 has 2 divisors, whose sum is σ = 342100458. Its totient is φ = 342100456.

The previous prime is 342100399. The next prime is 342100471. The reversal of 342100457 is 754001243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341362576 + 737881 = 18476^2 + 859^2 .

It is an emirp because it is prime and its reverse (754001243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342100457 - 2⁶ = 342100393 is a prime.

It is not a weakly prime, because it can be changed into another prime (342100487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171050228 + 171050229.

It is an arithmetic number, because the mean of its divisors is an integer number (171050229).

Almost surely, 2^342100457 is an apocalyptic number.

It is an amenable number.

342100457 is a deficient number, since it is larger than the sum of its proper divisors (1).

342100457 is an equidigital number, since it uses as much as digits as its factorization.

342100457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 342100457 is about 18495.9578557046. The cubic root of 342100457 is about 699.3875302581.

The spelling of 342100457 in words is "three hundred forty-two million, one hundred thousand, four hundred fifty-seven".