1245405210 has 128 divisors (see below), whose sum is σ = 3645886464. Its totient is φ = 265774080.

The previous prime is 1245405167. The next prime is 1245405211. The reversal of 1245405210 is 125045421.

It is not an unprimeable number, because it can be changed into a prime (1245405211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 466339 + ... + 469001.

It is an arithmetic number, because the mean of its divisors is an integer number (28483488).

Almost surely, 2^1245405210 is an apocalyptic number.

1245405210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1245405210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1822943232).

1245405210 is an abundant number, since it is smaller than the sum of its proper divisors (2400481254).

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

1245405210 is a wasteful number, since it uses less digits than its factorization.

1245405210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1245405210 is about 35290.2990919601. The cubic root of 1245405210 is about 1075.8958344780.

The spelling of 1245405210 in words is "one billion, two hundred forty-five million, four hundred five thousand, two hundred ten".