1351499680 has 24 divisors (see below), whose sum is σ = 3192918372. Its totient is φ = 540599808.

The previous prime is 1351499671. The next prime is 1351499741. The reversal of 1351499680 is 869941531.

It can be written as a sum of positive squares in 2 ways, for example, as 1308413584 + 43086096 = 36172^2 + 6564^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1351499680.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4223277 + ... + 4223596.

Almost surely, 2^1351499680 is an apocalyptic number.

1351499680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351499680 is an abundant number, since it is smaller than the sum of its proper divisors (1841418692).

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

1351499680 is an equidigital number, since it uses as much as digits as its factorization.

1351499680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8446888 (or 8446880 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 1351499680 is about 36762.7485370721. The cubic root of 1351499680 is about 1105.6185476520.

The spelling of 1351499680 in words is "one billion, three hundred fifty-one million, four hundred ninety-nine thousand, six hundred eighty".