157927249 has 2 divisors, whose sum is σ = 157927250. Its totient is φ = 157927248.

The previous prime is 157927201. The next prime is 157927291. The reversal of 157927249 is 942729751.

It is a happy number.

157927249 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., 113571649 + 44355600 = 10657^2 + 6660^2 .

It is an emirp because it is prime and its reverse (942729751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157927249 - 2⁹ = 157926737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157927199 and 157927208.

It is not a weakly prime, because it can be changed into another prime (157327249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78963624 + 78963625.

It is an arithmetic number, because the mean of its divisors is an integer number (78963625).

Almost surely, 2^157927249 is an apocalyptic number.

It is an amenable number.

157927249 is a deficient number, since it is larger than the sum of its proper divisors (1).

157927249 is an equidigital number, since it uses as much as digits as its factorization.

157927249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 46.

The square root of 157927249 is about 12566.9108773795. The cubic root of 157927249 is about 540.5290300161.

The spelling of 157927249 in words is "one hundred fifty-seven million, nine hundred twenty-seven thousand, two hundred forty-nine".