1010020245 has 16 divisors (see below), whose sum is σ = 1740342912. Its totient is φ = 497240640.

The previous prime is 1010020241. The next prime is 1010020247. The reversal of 1010020245 is 5420200101.

It is not a de Polignac number, because 1010020245 - 2² = 1010020241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010020241) 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, 2589601 + ... + 2589990.

It is an arithmetic number, because the mean of its divisors is an integer number (108771432).

Almost surely, 2^1010020245 is an apocalyptic number.

1010020245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1010020245 is a deficient number, since it is larger than the sum of its proper divisors (730322667).

1010020245 is a wasteful number, since it uses less digits than its factorization.

1010020245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5179612.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1010020245 is about 31780.8156754983. The cubic root of 1010020245 is about 1003.3289872133.

Adding to 1010020245 its reverse (5420200101), we get a palindrome (6430220346).

The spelling of 1010020245 in words is "one billion, ten million, twenty thousand, two hundred forty-five".