1351800072 has 48 divisors (see below), whose sum is σ = 4184144640. Its totient is φ = 386228448.

The previous prime is 1351800071. The next prime is 1351800097. The reversal of 1351800072 is 2700081531.

It is not an unprimeable number, because it can be changed into a prime (1351800071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1340568 + ... + 1341575.

It is an arithmetic number, because the mean of its divisors is an integer number (87169680).

Almost surely, 2^1351800072 is an apocalyptic number.

1351800072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1351800072 is an abundant number, since it is smaller than the sum of its proper divisors (2832344568).

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

1351800072 is a wasteful number, since it uses less digits than its factorization.

1351800072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682162 (or 2682155 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 1351800072 is about 36766.8338587918. The cubic root of 1351800072 is about 1105.7004552712.

The spelling of 1351800072 in words is "one billion, three hundred fifty-one million, eight hundred thousand, seventy-two".