1940137 has 2 divisors, whose sum is σ = 1940138. Its totient is φ = 1940136.

The previous prime is 1940131. The next prime is 1940143. The reversal of 1940137 is 7310491.

It is a balanced prime because it is at equal distance from previous prime (1940131) and next prime (1940143).

It can be written as a sum of positive squares in only one way, i.e., 1929321 + 10816 = 1389^2 + 104^2 .

It is an emirp because it is prime and its reverse (7310491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1940137 - 2¹⁵ = 1907369 is a prime.

It is not a weakly prime, because it can be changed into another prime (1940131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970068 + 970069.

It is an arithmetic number, because the mean of its divisors is an integer number (970069).

2^1940137 is an apocalyptic number.

It is an amenable number.

1940137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940137 is an equidigital number, since it uses as much as digits as its factorization.

1940137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1940137 is about 1392.8880069841. Note that the first 3 decimals coincide. The cubic root of 1940137 is about 124.7223062128.

The spelling of 1940137 in words is "one million, nine hundred forty thousand, one hundred thirty-seven".