158328457 has 8 divisors (see below), whose sum is σ = 184640000. Its totient is φ = 135709812.

The previous prime is 158328433. The next prime is 158328461. The reversal of 158328457 is 754823851.

It is not a de Polignac number, because 158328457 - 2¹⁹ = 157804169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158328557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230457 + ... + 231142.

It is an arithmetic number, because the mean of its divisors is an integer number (23080000).

Almost surely, 2^158328457 is an apocalyptic number.

It is an amenable number.

158328457 is a deficient number, since it is larger than the sum of its proper divisors (26311543).

158328457 is an frugal number, since it uses more digits than its factorization.

158328457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461620 (or 461606 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The square root of 158328457 is about 12582.8636247875. The cubic root of 158328457 is about 540.9863739004.

The spelling of 158328457 in words is "one hundred fifty-eight million, three hundred twenty-eight thousand, four hundred fifty-seven".