158724045 has 24 divisors (see below), whose sum is σ = 275643576. Its totient is φ = 84492288.

The previous prime is 158724037. The next prime is 158724067. The reversal of 158724045 is 540427851.

It can be written as a sum of positive squares in 4 ways, for example, as 65755881 + 92968164 = 8109^2 + 9642^2 .

It is not a de Polignac number, because 158724045 - 2³ = 158724037 is a prime.

It is a super-2 number, since 2×158724045² = 50386644922324050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22909 + ... + 29021.

It is an arithmetic number, because the mean of its divisors is an integer number (11485149).

Almost surely, 2^158724045 is an apocalyptic number.

158724045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158724045 is a deficient number, since it is larger than the sum of its proper divisors (116919531).

158724045 is a wasteful number, since it uses less digits than its factorization.

158724045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6701 (or 6698 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 158724045 is about 12598.5731334941. The cubic root of 158724045 is about 541.4365556176.

The spelling of 158724045 in words is "one hundred fifty-eight million, seven hundred twenty-four thousand, forty-five".