1020273855 has 8 divisors (see below), whose sum is σ = 1632438192. Its totient is φ = 544146048.

The previous prime is 1020273851. The next prime is 1020273869. The reversal of 1020273855 is 5583720201.

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

It is not a de Polignac number, because 1020273855 - 2² = 1020273851 is a prime.

It is a super-2 number, since 2×1020273855² = 2081917478393122050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020273851) 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, 34009114 + ... + 34009143.

It is an arithmetic number, because the mean of its divisors is an integer number (204054774).

Almost surely, 2^1020273855 is an apocalyptic number.

1020273855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020273855 is a deficient number, since it is larger than the sum of its proper divisors (612164337).

1020273855 is an equidigital number, since it uses as much as digits as its factorization.

1020273855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68018265.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 1020273855 is about 31941.7259239384. The cubic root of 1020273855 is about 1006.7127892970.

The spelling of 1020273855 in words is "one billion, twenty million, two hundred seventy-three thousand, eight hundred fifty-five".