1934355121 has 2 divisors, whose sum is σ = 1934355122. Its totient is φ = 1934355120.

The previous prime is 1934355119. The next prime is 1934355167. The reversal of 1934355121 is 1215534391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1246866721 + 687488400 = 35311^2 + 26220^2 .

It is a cyclic number.

It is not a de Polignac number, because 1934355121 - 2¹ = 1934355119 is a prime.

Together with 1934355119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1934055121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 967177560 + 967177561.

It is an arithmetic number, because the mean of its divisors is an integer number (967177561).

Almost surely, 2^1934355121 is an apocalyptic number.

It is an amenable number.

1934355121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1934355121 is an equidigital number, since it uses as much as digits as its factorization.

1934355121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 34.

The square root of 1934355121 is about 43981.3042212256. The cubic root of 1934355121 is about 1245.9828630649.

The spelling of 1934355121 in words is "one billion, nine hundred thirty-four million, three hundred fifty-five thousand, one hundred twenty-one".