1337486729 has 4 divisors (see below), whose sum is σ = 1346463300. Its totient is φ = 1328510160.

The previous prime is 1337486687. The next prime is 1337486737. The reversal of 1337486729 is 9276847331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9276847331 = 839 ⋅11057029.

It can be written as a sum of positive squares in 2 ways, for example, as 93161104 + 1244325625 = 9652^2 + 35275^2 .

It is a cyclic number.

It is not a de Polignac number, because 1337486729 - 2¹⁶ = 1337421193 is a prime.

It is a super-2 number, since 2×1337486729² = 3577741500502238882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1337486329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4488062 + ... + 4488359.

It is an arithmetic number, because the mean of its divisors is an integer number (336615825).

Almost surely, 2^1337486729 is an apocalyptic number.

It is an amenable number.

1337486729 is a deficient number, since it is larger than the sum of its proper divisors (8976571).

1337486729 is an equidigital number, since it uses as much as digits as its factorization.

1337486729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8976570.

The product of its digits is 1524096, while the sum is 50.

The square root of 1337486729 is about 36571.6656579927. The cubic root of 1337486729 is about 1101.7840825302.

The spelling of 1337486729 in words is "one billion, three hundred thirty-seven million, four hundred eighty-six thousand, seven hundred twenty-nine".