158137201 has 2 divisors, whose sum is σ = 158137202. Its totient is φ = 158137200.

The previous prime is 158137183. The next prime is 158137207. The reversal of 158137201 is 102731851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138768400 + 19368801 = 11780^2 + 4401^2 .

It is a cyclic number.

It is not a de Polignac number, because 158137201 - 2⁷ = 158137073 is a prime.

It is a super-2 number, since 2×158137201² = 50014748680228802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 158137201.

It is not a weakly prime, because it can be changed into another prime (158137207) 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 as a sum of consecutive naturals, namely, 79068600 + 79068601.

It is an arithmetic number, because the mean of its divisors is an integer number (79068601).

Almost surely, 2^158137201 is an apocalyptic number.

It is an amenable number.

158137201 is a deficient number, since it is larger than the sum of its proper divisors (1).

158137201 is an equidigital number, since it uses as much as digits as its factorization.

158137201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 158137201 is about 12575.2614684546. The cubic root of 158137201 is about 540.7684543900.

The spelling of 158137201 in words is "one hundred fifty-eight million, one hundred thirty-seven thousand, two hundred one".