1351231504 has 20 divisors (see below), whose sum is σ = 2992012864. Its totient is φ = 579099168.

The previous prime is 1351231501. The next prime is 1351231517. The reversal of 1351231504 is 4051321531.

It is a happy number.

It is a super-3 number, since 3×1351231504³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1351231501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6032172 + ... + 6032395.

Almost surely, 2^1351231504 is an apocalyptic number.

1351231504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1351231504 is an abundant number, since it is smaller than the sum of its proper divisors (1640781360).

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

1351231504 is a wasteful number, since it uses less digits than its factorization.

1351231504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12064582 (or 12064576 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1351231504 is about 36759.1009683316. The cubic root of 1351231504 is about 1105.5454140860.

The spelling of 1351231504 in words is "one billion, three hundred fifty-one million, two hundred thirty-one thousand, five hundred four".