158499941 has 2 divisors, whose sum is σ = 158499942. Its totient is φ = 158499940.

The previous prime is 158499889. The next prime is 158499953. The reversal of 158499941 is 149994851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152423716 + 6076225 = 12346^2 + 2465^2 .

It is a cyclic number.

It is not a de Polignac number, because 158499941 - 2¹⁸ = 158237797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158499941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158499541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79249970 + 79249971.

It is an arithmetic number, because the mean of its divisors is an integer number (79249971).

Almost surely, 2^158499941 is an apocalyptic number.

It is an amenable number.

158499941 is a deficient number, since it is larger than the sum of its proper divisors (1).

158499941 is an equidigital number, since it uses as much as digits as its factorization.

158499941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 50.

The square root of 158499941 is about 12589.6759688246. The cubic root of 158499941 is about 541.1816157757.

The spelling of 158499941 in words is "one hundred fifty-eight million, four hundred ninety-nine thousand, nine hundred forty-one".