157628873 has 2 divisors, whose sum is σ = 157628874. Its totient is φ = 157628872.

The previous prime is 157628857. The next prime is 157628881. The reversal of 157628873 is 378826751.

It is a happy number.

157628873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140256649 + 17372224 = 11843^2 + 4168^2 .

It is a cyclic number.

It is not a de Polignac number, because 157628873 - 2⁴ = 157628857 is a prime.

It is not a weakly prime, because it can be changed into another prime (157628773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78814436 + 78814437.

It is an arithmetic number, because the mean of its divisors is an integer number (78814437).

Almost surely, 2^157628873 is an apocalyptic number.

It is an amenable number.

157628873 is a deficient number, since it is larger than the sum of its proper divisors (1).

157628873 is an equidigital number, since it uses as much as digits as its factorization.

157628873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 47.

The square root of 157628873 is about 12555.0337713604. The cubic root of 157628873 is about 540.1884036236.

The spelling of 157628873 in words is "one hundred fifty-seven million, six hundred twenty-eight thousand, eight hundred seventy-three".