157444211 has 2 divisors, whose sum is σ = 157444212. Its totient is φ = 157444210.

The previous prime is 157444207. The next prime is 157444247. The reversal of 157444211 is 112444751.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157444211 - 2² = 157444207 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157444201) 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, 78722105 + 78722106.

It is an arithmetic number, because the mean of its divisors is an integer number (78722106).

Almost surely, 2^157444211 is an apocalyptic number.

157444211 is a deficient number, since it is larger than the sum of its proper divisors (1).

157444211 is an equidigital number, since it uses as much as digits as its factorization.

157444211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 29.

The square root of 157444211 is about 12547.6775141856. The cubic root of 157444211 is about 539.9773778818.

Adding to 157444211 its reverse (112444751), we get a palindrome (269888962).

The spelling of 157444211 in words is "one hundred fifty-seven million, four hundred forty-four thousand, two hundred eleven".