1351254420 has 96 divisors (see below), whose sum is σ = 4348915200. Its totient is φ = 347905152.

The previous prime is 1351254419. The next prime is 1351254461. The reversal of 1351254420 is 244521531.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27484 + ... + 58803.

It is an arithmetic number, because the mean of its divisors is an integer number (45301200).

Almost surely, 2^1351254420 is an apocalyptic number.

1351254420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351254420 is an abundant number, since it is smaller than the sum of its proper divisors (2997660780).

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

1351254420 is a wasteful number, since it uses less digits than its factorization.

1351254420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86334 (or 86326 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1351254420 is about 36759.4126721307. The cubic root of 1351254420 is about 1105.5516638257.

Adding to 1351254420 its reverse (244521531), we get a palindrome (1595775951).

The spelling of 1351254420 in words is "one billion, three hundred fifty-one million, two hundred fifty-four thousand, four hundred twenty".