302193421 has 2 divisors, whose sum is σ = 302193422. Its totient is φ = 302193420.

The previous prime is 302193371. The next prime is 302193497. The reversal of 302193421 is 124391203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184579396 + 117614025 = 13586^2 + 10845^2 .

It is a cyclic number.

It is not a de Polignac number, because 302193421 - 2¹⁷ = 302062349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302193721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151096710 + 151096711.

It is an arithmetic number, because the mean of its divisors is an integer number (151096711).

Almost surely, 2^302193421 is an apocalyptic number.

It is an amenable number.

302193421 is a deficient number, since it is larger than the sum of its proper divisors (1).

302193421 is an equidigital number, since it uses as much as digits as its factorization.

302193421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 302193421 is about 17383.7113701304. The cubic root of 302193421 is about 671.0604880753.

The spelling of 302193421 in words is "three hundred two million, one hundred ninety-three thousand, four hundred twenty-one".