157489847 has 2 divisors, whose sum is σ = 157489848. Its totient is φ = 157489846.

The previous prime is 157489837. The next prime is 157489859. The reversal of 157489847 is 748984751.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157489847 - 2⁴ = 157489831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157489817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78744923 + 78744924.

It is an arithmetic number, because the mean of its divisors is an integer number (78744924).

Almost surely, 2^157489847 is an apocalyptic number.

157489847 is a deficient number, since it is larger than the sum of its proper divisors (1).

157489847 is an equidigital number, since it uses as much as digits as its factorization.

157489847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 53.

The square root of 157489847 is about 12549.4958862896. The cubic root of 157489847 is about 540.0295445655.

The spelling of 157489847 in words is "one hundred fifty-seven million, four hundred eighty-nine thousand, eight hundred forty-seven".