158503947 has 16 divisors (see below), whose sum is σ = 254242560. Its totient is φ = 85806432.

The previous prime is 158503907. The next prime is 158503957. The reversal of 158503947 is 749305851.

It is not a de Polignac number, because 158503947 - 2¹¹ = 158501899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158503899 and 158503908.

It is not an unprimeable number, because it can be changed into a prime (158503907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198228 + ... + 199025.

It is an arithmetic number, because the mean of its divisors is an integer number (15890160).

Almost surely, 2^158503947 is an apocalyptic number.

158503947 is a deficient number, since it is larger than the sum of its proper divisors (95738613).

158503947 is a wasteful number, since it uses less digits than its factorization.

158503947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397282.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 158503947 is about 12589.8350664336. The cubic root of 158503947 is about 541.1861750945.

The spelling of 158503947 in words is "one hundred fifty-eight million, five hundred three thousand, nine hundred forty-seven".