342947951 has 2 divisors, whose sum is σ = 342947952. Its totient is φ = 342947950.

The previous prime is 342947923. The next prime is 342947981. The reversal of 342947951 is 159749243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342947951 - 2⁶ = 342947887 is a prime.

It is a super-2 number, since 2×342947951² = 235226594190196802, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342947981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171473975 + 171473976.

It is an arithmetic number, because the mean of its divisors is an integer number (171473976).

Almost surely, 2^342947951 is an apocalyptic number.

342947951 is a deficient number, since it is larger than the sum of its proper divisors (1).

342947951 is an equidigital number, since it uses as much as digits as its factorization.

342947951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 342947951 is about 18518.8539332217. The cubic root of 342947951 is about 699.9645907259.

The spelling of 342947951 in words is "three hundred forty-two million, nine hundred forty-seven thousand, nine hundred fifty-one".