1020530158 has 16 divisors (see below), whose sum is σ = 1574004960. Its totient is φ = 496038816.

The previous prime is 1020530149. The next prime is 1020530167. The reversal of 1020530158 is 8510350201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020530149) and next prime (1020530167).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32610 + ... + 55717.

It is an arithmetic number, because the mean of its divisors is an integer number (98375310).

Almost surely, 2^1020530158 is an apocalyptic number.

1020530158 is a deficient number, since it is larger than the sum of its proper divisors (553474802).

1020530158 is a wasteful number, since it uses less digits than its factorization.

1020530158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88491.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1020530158 is about 31945.7377125650. The cubic root of 1020530158 is about 1006.7970810139.

Adding to 1020530158 its reverse (8510350201), we get a palindrome (9530880359).

The spelling of 1020530158 in words is "one billion, twenty million, five hundred thirty thousand, one hundred fifty-eight".