1934358157 has 2 divisors, whose sum is σ = 1934358158. Its totient is φ = 1934358156.

The previous prime is 1934358109. The next prime is 1934358193. The reversal of 1934358157 is 7518534391.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1881737641 + 52620516 = 43379^2 + 7254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1934358157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1934058157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 967179078 + 967179079.

It is an arithmetic number, because the mean of its divisors is an integer number (967179079).

Almost surely, 2^1934358157 is an apocalyptic number.

It is an amenable number.

1934358157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1934358157 is an equidigital number, since it uses as much as digits as its factorization.

1934358157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 46.

The square root of 1934358157 is about 43981.3387358775. The cubic root of 1934358157 is about 1245.9835149276.

The spelling of 1934358157 in words is "one billion, nine hundred thirty-four million, three hundred fifty-eight thousand, one hundred fifty-seven".