342691451 has 2 divisors, whose sum is σ = 342691452. Its totient is φ = 342691450.

The previous prime is 342691441. The next prime is 342691471. The reversal of 342691451 is 154196243.

It is a weak prime.

It is an emirp because it is prime and its reverse (154196243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342691451 - 2²² = 338497147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (342691441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171345725 + 171345726.

It is an arithmetic number, because the mean of its divisors is an integer number (171345726).

Almost surely, 2^342691451 is an apocalyptic number.

342691451 is a deficient number, since it is larger than the sum of its proper divisors (1).

342691451 is an equidigital number, since it uses as much as digits as its factorization.

342691451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 342691451 is about 18511.9272632538. The cubic root of 342691451 is about 699.7900397512.

The spelling of 342691451 in words is "three hundred forty-two million, six hundred ninety-one thousand, four hundred fifty-one".