1402271993 has 2 divisors, whose sum is σ = 1402271994. Its totient is φ = 1402271992.

The previous prime is 1402271971. The next prime is 1402272017. The reversal of 1402271993 is 3991722041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1270779904 + 131492089 = 35648^2 + 11467^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402271993 - 2¹² = 1402267897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1402271293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701135996 + 701135997.

It is an arithmetic number, because the mean of its divisors is an integer number (701135997).

Almost surely, 2^1402271993 is an apocalyptic number.

It is an amenable number.

1402271993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402271993 is an equidigital number, since it uses as much as digits as its factorization.

1402271993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 1402271993 is about 37446.9223434984. The cubic root of 1402271993 is about 1119.2937705992.

The spelling of 1402271993 in words is "one billion, four hundred two million, two hundred seventy-one thousand, nine hundred ninety-three".