157825847 has 2 divisors, whose sum is σ = 157825848. Its totient is φ = 157825846.

The previous prime is 157825823. The next prime is 157825853. The reversal of 157825847 is 748528751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157825847 - 2¹⁶ = 157760311 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157825817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78912923 + 78912924.

It is an arithmetic number, because the mean of its divisors is an integer number (78912924).

Almost surely, 2^157825847 is an apocalyptic number.

157825847 is a deficient number, since it is larger than the sum of its proper divisors (1).

157825847 is an equidigital number, since it uses as much as digits as its factorization.

157825847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 627200, while the sum is 47.

The square root of 157825847 is about 12562.8757456245. The cubic root of 157825847 is about 540.4133175383.

The spelling of 157825847 in words is "one hundred fifty-seven million, eight hundred twenty-five thousand, eight hundred forty-seven".