157872833 has 2 divisors, whose sum is σ = 157872834. Its totient is φ = 157872832.

The previous prime is 157872817. The next prime is 157872877. The reversal of 157872833 is 338278751.

It is an a-pointer prime, because the next prime (157872877) can be obtained adding 157872833 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108409744 + 49463089 = 10412^2 + 7033^2 .

It is an emirp because it is prime and its reverse (338278751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157872833 - 2⁴ = 157872817 is a prime.

It is not a weakly prime, because it can be changed into another prime (157872893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78936416 + 78936417.

It is an arithmetic number, because the mean of its divisors is an integer number (78936417).

Almost surely, 2^157872833 is an apocalyptic number.

It is an amenable number.

157872833 is a deficient number, since it is larger than the sum of its proper divisors (1).

157872833 is an equidigital number, since it uses as much as digits as its factorization.

157872833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 44.

The square root of 157872833 is about 12564.7456400836. The cubic root of 157872833 is about 540.4669406536.

The spelling of 157872833 in words is "one hundred fifty-seven million, eight hundred seventy-two thousand, eight hundred thirty-three".