292129421 has 2 divisors, whose sum is σ = 292129422. Its totient is φ = 292129420.

The previous prime is 292129391. The next prime is 292129423. The reversal of 292129421 is 124921292.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291931396 + 198025 = 17086^2 + 445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-292129421 is a prime.

It is a super-2 number, since 2×292129421² = 170679197227590482, which contains 22 as substring.

Together with 292129423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (292129423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 146064710 + 146064711.

It is an arithmetic number, because the mean of its divisors is an integer number (146064711).

Almost surely, 2^292129421 is an apocalyptic number.

It is an amenable number.

292129421 is a deficient number, since it is larger than the sum of its proper divisors (1).

292129421 is an equidigital number, since it uses as much as digits as its factorization.

292129421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The square root of 292129421 is about 17091.7939666964. The cubic root of 292129421 is about 663.5267447476.

The spelling of 292129421 in words is "two hundred ninety-two million, one hundred twenty-nine thousand, four hundred twenty-one".