1940350157 has 2 divisors, whose sum is σ = 1940350158. Its totient is φ = 1940350156.

The previous prime is 1940350141. The next prime is 1940350187. The reversal of 1940350157 is 7510530491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1388382121 + 551968036 = 37261^2 + 23494^2 .

It is a cyclic number.

It is not a de Polignac number, because 1940350157 - 2⁴ = 1940350141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1940350187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970175078 + 970175079.

It is an arithmetic number, because the mean of its divisors is an integer number (970175079).

Almost surely, 2^1940350157 is an apocalyptic number.

It is an amenable number.

1940350157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940350157 is an equidigital number, since it uses as much as digits as its factorization.

1940350157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 1940350157 is about 44049.4058643247. The cubic root of 1940350157 is about 1247.2687366671.

The spelling of 1940350157 in words is "one billion, nine hundred forty million, three hundred fifty thousand, one hundred fifty-seven".