157573673 has 2 divisors, whose sum is σ = 157573674. Its totient is φ = 157573672.

The previous prime is 157573649. The next prime is 157573681. The reversal of 157573673 is 376375751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153561664 + 4012009 = 12392^2 + 2003^2 .

157573673 is a truncatable prime.

It is an emirp because it is prime and its reverse (376375751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157573673 - 2¹⁶ = 157508137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (157573613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78786836 + 78786837.

It is an arithmetic number, because the mean of its divisors is an integer number (78786837).

Almost surely, 2^157573673 is an apocalyptic number.

It is an amenable number.

157573673 is a deficient number, since it is larger than the sum of its proper divisors (1).

157573673 is an equidigital number, since it uses as much as digits as its factorization.

157573673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 463050, while the sum is 44.

The square root of 157573673 is about 12552.8352574229. The cubic root of 157573673 is about 540.1253401321.

The spelling of 157573673 in words is "one hundred fifty-seven million, five hundred seventy-three thousand, six hundred seventy-three".