158445983 has 2 divisors, whose sum is σ = 158445984. Its totient is φ = 158445982.

The previous prime is 158445953. The next prime is 158446003. The reversal of 158445983 is 389544851.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158445983 - 2²² = 154251679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158445913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79222991 + 79222992.

It is an arithmetic number, because the mean of its divisors is an integer number (79222992).

Almost surely, 2^158445983 is an apocalyptic number.

158445983 is a deficient number, since it is larger than the sum of its proper divisors (1).

158445983 is an equidigital number, since it uses as much as digits as its factorization.

158445983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 47.

The square root of 158445983 is about 12587.5328400763. The cubic root of 158445983 is about 541.1201974733.

The spelling of 158445983 in words is "one hundred fifty-eight million, four hundred forty-five thousand, nine hundred eighty-three".