1540050173 has 2 divisors, whose sum is σ = 1540050174. Its totient is φ = 1540050172.

The previous prime is 1540050167. The next prime is 1540050199. The reversal of 1540050173 is 3710500451.

It is an a-pointer prime, because the next prime (1540050199) can be obtained adding 1540050173 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 798740644 + 741309529 = 28262^2 + 27227^2 .

It is a cyclic number.

It is not a de Polignac number, because 1540050173 - 2⁴ = 1540050157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1540050163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770025086 + 770025087.

It is an arithmetic number, because the mean of its divisors is an integer number (770025087).

Almost surely, 2^1540050173 is an apocalyptic number.

It is an amenable number.

1540050173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540050173 is an equidigital number, since it uses as much as digits as its factorization.

1540050173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1540050173 is about 39243.4729987039. The cubic root of 1540050173 is about 1154.8128912372.

The spelling of 1540050173 in words is "one billion, five hundred forty million, fifty thousand, one hundred seventy-three".