1020525319 has 8 divisors (see below), whose sum is σ = 1115342208. Its totient is φ = 926048760.

The previous prime is 1020525299. The next prime is 1020525323. The reversal of 1020525319 is 9135250201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020525319 is a prime.

It is a super-2 number, since 2×1020525319² = 2082943853440103522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020525119) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 78787 + ... + 90820.

It is an arithmetic number, because the mean of its divisors is an integer number (139417776).

Almost surely, 2^1020525319 is an apocalyptic number.

1020525319 is a deficient number, since it is larger than the sum of its proper divisors (94816889).

1020525319 is a wasteful number, since it uses less digits than its factorization.

1020525319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170165.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 1020525319 is about 31945.6619746719. The cubic root of 1020525319 is about 1006.7954897173.

The spelling of 1020525319 in words is "one billion, twenty million, five hundred twenty-five thousand, three hundred nineteen".