157940201 has 4 divisors (see below), whose sum is σ = 159714900. Its totient is φ = 156165504.

The previous prime is 157940147. The next prime is 157940203. The reversal of 157940201 is 102049751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101989801 + 55950400 = 10099^2 + 7480^2 .

It is a cyclic number.

It is not a de Polignac number, because 157940201 - 2¹⁴ = 157923817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157940203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887216 + ... + 887393.

It is an arithmetic number, because the mean of its divisors is an integer number (39928725).

Almost surely, 2^157940201 is an apocalyptic number.

It is an amenable number.

157940201 is a deficient number, since it is larger than the sum of its proper divisors (1774699).

157940201 is an equidigital number, since it uses as much as digits as its factorization.

157940201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774698.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 157940201 is about 12567.4261883649. The cubic root of 157940201 is about 540.5438063148.

Adding to 157940201 its reverse (102049751), we get a palindrome (259989952).

The spelling of 157940201 in words is "one hundred fifty-seven million, nine hundred forty thousand, two hundred one".