158142737 has 4 divisors (see below), whose sum is σ = 158453940. Its totient is φ = 157831536.

The previous prime is 158142727. The next prime is 158142767. The reversal of 158142737 is 737241851.

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 103958416 + 54184321 = 10196^2 + 7361^2 .

It is a cyclic number.

It is not a de Polignac number, because 158142737 - 2¹⁰ = 158141713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158142737.

It is not an unprimeable number, because it can be changed into a prime (158142707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154838 + ... + 155855.

It is an arithmetic number, because the mean of its divisors is an integer number (39613485).

Almost surely, 2^158142737 is an apocalyptic number.

It is an amenable number.

158142737 is a deficient number, since it is larger than the sum of its proper divisors (311203).

158142737 is an equidigital number, since it uses as much as digits as its factorization.

158142737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311202.

The product of its digits is 47040, while the sum is 38.

The square root of 158142737 is about 12575.4815812358. The cubic root of 158142737 is about 540.7747646471.

The spelling of 158142737 in words is "one hundred fifty-eight million, one hundred forty-two thousand, seven hundred thirty-seven".