1994022132937 has 2 divisors, whose sum is σ = 1994022132938. Its totient is φ = 1994022132936.

The previous prime is 1994022132887. The next prime is 1994022132953. The reversal of 1994022132937 is 7392312204991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1719169391241 + 274852741696 = 1311171^2 + 524264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1994022132937 is a prime.

It is a super-4 number, since 4×1994022132937⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1994022132967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997011066468 + 997011066469.

It is an arithmetic number, because the mean of its divisors is an integer number (997011066469).

Almost surely, 2^{1994022132937} is an apocalyptic number.

It is an amenable number.

1994022132937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1994022132937 is an equidigital number, since it uses as much as digits as its factorization.

1994022132937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The spelling of 1994022132937 in words is "one trillion, nine hundred ninety-four billion, twenty-two million, one hundred thirty-two thousand, nine hundred thirty-seven".