1245411020 has 48 divisors (see below), whose sum is σ = 2995030080. Its totient is φ = 426134784.

The previous prime is 1245410981. The next prime is 1245411043. The reversal of 1245411020 is 201145421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1245410983 and 1245411001.

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 15 ways as a sum of consecutive naturals, for example, 62522 + ... + 79998.

It is an arithmetic number, because the mean of its divisors is an integer number (62396460).

Almost surely, 2^1245411020 is an apocalyptic number.

1245411020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245411020 is an abundant number, since it is smaller than the sum of its proper divisors (1749619060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245411020 is a wasteful number, since it uses less digits than its factorization.

1245411020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18002 (or 18000 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1245411020 is about 35290.3814091035. The cubic root of 1245411020 is about 1075.8975075466.

Adding to 1245411020 its reverse (201145421), we get a palindrome (1446556441).

The spelling of 1245411020 in words is "one billion, two hundred forty-five million, four hundred eleven thousand, twenty".