1394937293 has 2 divisors, whose sum is σ = 1394937294. Its totient is φ = 1394937292.

The previous prime is 1394937277. The next prime is 1394937331. The reversal of 1394937293 is 3927394931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1129833769 + 265103524 = 33613^2 + 16282^2 .

It is a cyclic number.

It is not a de Polignac number, because 1394937293 - 2⁴ = 1394937277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1394937223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697468646 + 697468647.

It is an arithmetic number, because the mean of its divisors is an integer number (697468647).

Almost surely, 2^1394937293 is an apocalyptic number.

It is an amenable number.

1394937293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394937293 is an equidigital number, since it uses as much as digits as its factorization.

1394937293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1102248, while the sum is 50.

The square root of 1394937293 is about 37348.8593266247. The cubic root of 1394937293 is about 1117.3388385053.

The spelling of 1394937293 in words is "one billion, three hundred ninety-four million, nine hundred thirty-seven thousand, two hundred ninety-three".