1420202141 has 2 divisors, whose sum is σ = 1420202142. Its totient is φ = 1420202140.

The previous prime is 1420202089. The next prime is 1420202159. The reversal of 1420202141 is 1412020241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1400930041 + 19272100 = 37429^2 + 4390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420202141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420202041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710101070 + 710101071.

It is an arithmetic number, because the mean of its divisors is an integer number (710101071).

Almost surely, 2^1420202141 is an apocalyptic number.

It is an amenable number.

1420202141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420202141 is an equidigital number, since it uses as much as digits as its factorization.

1420202141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1420202141 is about 37685.5693999706. The cubic root of 1420202141 is about 1124.0441965056.

Adding to 1420202141 its reverse (1412020241), we get a palindrome (2832222382).

The spelling of 1420202141 in words is "one billion, four hundred twenty million, two hundred two thousand, one hundred forty-one".