158441537 has 2 divisors, whose sum is σ = 158441538. Its totient is φ = 158441536.

The previous prime is 158441489. The next prime is 158441573. The reversal of 158441537 is 735144851.

Together with next prime (158441573) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157527601 + 913936 = 12551^2 + 956^2 .

It is a cyclic number.

It is not a de Polignac number, because 158441537 - 2⁶ = 158441473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158441537.

It is not a weakly prime, because it can be changed into another prime (158441737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79220768 + 79220769.

It is an arithmetic number, because the mean of its divisors is an integer number (79220769).

Almost surely, 2^158441537 is an apocalyptic number.

It is an amenable number.

158441537 is a deficient number, since it is larger than the sum of its proper divisors (1).

158441537 is an equidigital number, since it uses as much as digits as its factorization.

158441537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 38.

The square root of 158441537 is about 12587.3562355246. The cubic root of 158441537 is about 541.1151361419.

The spelling of 158441537 in words is "one hundred fifty-eight million, four hundred forty-one thousand, five hundred thirty-seven".