158615145 has 32 divisors (see below), whose sum is σ = 303676800. Its totient is φ = 78086592.

The previous prime is 158615143. The next prime is 158615201. The reversal of 158615145 is 541516851.

It is not a de Polignac number, because 158615145 - 2¹ = 158615143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158615143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43435 + ... + 46944.

It is an arithmetic number, because the mean of its divisors is an integer number (9489900).

Almost surely, 2^158615145 is an apocalyptic number.

158615145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158615145 is a deficient number, since it is larger than the sum of its proper divisors (145061655).

158615145 is a wasteful number, since it uses less digits than its factorization.

158615145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90406 (or 90400 counting only the distinct ones).

The product of its digits is 24000, while the sum is 36.

The square root of 158615145 is about 12594.2504739266. The cubic root of 158615145 is about 541.3127013927.

The spelling of 158615145 in words is "one hundred fifty-eight million, six hundred fifteen thousand, one hundred forty-five".