1925493137 has 2 divisors, whose sum is σ = 1925493138. Its totient is φ = 1925493136.

The previous prime is 1925493067. The next prime is 1925493161. The reversal of 1925493137 is 7313945291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1549288321 + 376204816 = 39361^2 + 19396^2 .

It is a cyclic number.

It is not a de Polignac number, because 1925493137 - 2¹⁰ = 1925492113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1925492137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962746568 + 962746569.

It is an arithmetic number, because the mean of its divisors is an integer number (962746569).

Almost surely, 2^1925493137 is an apocalyptic number.

It is an amenable number.

1925493137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1925493137 is an equidigital number, since it uses as much as digits as its factorization.

1925493137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 44.

The square root of 1925493137 is about 43880.4413947718. The cubic root of 1925493137 is about 1244.0771830762.

The spelling of 1925493137 in words is "one billion, nine hundred twenty-five million, four hundred ninety-three thousand, one hundred thirty-seven".