1351182420 has 72 divisors (see below), whose sum is σ = 4684103424. Its totient is φ = 308841408.

The previous prime is 1351182379. The next prime is 1351182431. The reversal of 1351182420 is 242811531.

1351182420 is a `hidden beast` number, since 13 + 51 + 182 + 420 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 534924 + ... + 537443.

It is an arithmetic number, because the mean of its divisors is an integer number (65056992).

Almost surely, 2^1351182420 is an apocalyptic number.

1351182420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351182420 is an abundant number, since it is smaller than the sum of its proper divisors (3332921004).

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

1351182420 is a wasteful number, since it uses less digits than its factorization.

1351182420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072389 (or 1072384 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1351182420 is about 36758.4333180836. The cubic root of 1351182420 is about 1105.5320274709.

Adding to 1351182420 its reverse (242811531), we get a palindrome (1593993951).

The spelling of 1351182420 in words is "one billion, three hundred fifty-one million, one hundred eighty-two thousand, four hundred twenty".