420153941 has 2 divisors, whose sum is σ = 420153942. Its totient is φ = 420153940.

The previous prime is 420153911. The next prime is 420153947. The reversal of 420153941 is 149351024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361570225 + 58583716 = 19015^2 + 7654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420153941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420153947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210076970 + 210076971.

It is an arithmetic number, because the mean of its divisors is an integer number (210076971).

Almost surely, 2^420153941 is an apocalyptic number.

It is an amenable number.

420153941 is a deficient number, since it is larger than the sum of its proper divisors (1).

420153941 is an equidigital number, since it uses as much as digits as its factorization.

420153941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 420153941 is about 20497.6569636629. The cubic root of 420153941 is about 748.9787231412.

The spelling of 420153941 in words is "four hundred twenty million, one hundred fifty-three thousand, nine hundred forty-one".