1351212408 has 128 divisors (see below), whose sum is σ = 4619596800. Its totient is φ = 356358528.

The previous prime is 1351212347. The next prime is 1351212409. The reversal of 1351212408 is 8042121531.

1351212408 is a `hidden beast` number, since 135 + 121 + 2 + 408 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351212409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14716 + ... + 54027.

It is an arithmetic number, because the mean of its divisors is an integer number (36090600).

Almost surely, 2^1351212408 is an apocalyptic number.

1351212408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1351212408 is an abundant number, since it is smaller than the sum of its proper divisors (3268384392).

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

1351212408 is a wasteful number, since it uses less digits than its factorization.

1351212408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68778 (or 68768 counting only the distinct ones).

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

The square root of 1351212408 is about 36758.8412222148. The cubic root of 1351212408 is about 1105.5402060974.

Adding to 1351212408 its reverse (8042121531), we get a palindrome (9393333939).

The spelling of 1351212408 in words is "one billion, three hundred fifty-one million, two hundred twelve thousand, four hundred eight".