1351445420 has 48 divisors (see below), whose sum is σ = 3090739680. Its totient is φ = 493380096.

The previous prime is 1351445411. The next prime is 1351445429. The reversal of 1351445420 is 245441531.

It is an interprime number because it is at equal distance from previous prime (1351445411) and next prime (1351445429).

It is not an unprimeable number, because it can be changed into a prime (1351445429) 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, 6062 + ... + 52341.

It is an arithmetic number, because the mean of its divisors is an integer number (64390410).

Almost surely, 2^1351445420 is an apocalyptic number.

1351445420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351445420 is an abundant number, since it is smaller than the sum of its proper divisors (1739294260).

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

1351445420 is a wasteful number, since it uses less digits than its factorization.

1351445420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58514 (or 58512 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1351445420 is about 36762.0105543753. The cubic root of 1351445420 is about 1105.6037513320.

Adding to 1351445420 its reverse (245441531), we get a palindrome (1596886951).

The spelling of 1351445420 in words is "one billion, three hundred fifty-one million, four hundred forty-five thousand, four hundred twenty".