1320040137 has 8 divisors (see below), whose sum is σ = 1895442304. Its totient is φ = 812332368.

The previous prime is 1320040133. The next prime is 1320040177. The reversal of 1320040137 is 7310400231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320040137 - 2² = 1320040133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320040133) 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 7 ways as a sum of consecutive naturals, for example, 16923553 + ... + 16923630.

It is an arithmetic number, because the mean of its divisors is an integer number (236930288).

Almost surely, 2^1320040137 is an apocalyptic number.

It is an amenable number.

1320040137 is a deficient number, since it is larger than the sum of its proper divisors (575402167).

1320040137 is a wasteful number, since it uses less digits than its factorization.

1320040137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33847199.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 1320040137 is about 36332.3566122540. The cubic root of 1320040137 is about 1096.9724287415.

Adding to 1320040137 its reverse (7310400231), we get a palindrome (8630440368).

The spelling of 1320040137 in words is "one billion, three hundred twenty million, forty thousand, one hundred thirty-seven".