1340520153 has 8 divisors (see below), whose sum is σ = 2042697408. Its totient is φ = 766011504.

The previous prime is 1340520151. The next prime is 1340520163. The reversal of 1340520153 is 3510250431.

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

It is not a de Polignac number, because 1340520153 - 2¹ = 1340520151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340520151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31917126 + ... + 31917167.

It is an arithmetic number, because the mean of its divisors is an integer number (255337176).

Almost surely, 2^1340520153 is an apocalyptic number.

It is an amenable number.

1340520153 is a deficient number, since it is larger than the sum of its proper divisors (702177255).

1340520153 is an equidigital number, since it uses as much as digits as its factorization.

1340520153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63834303.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1340520153 is about 36613.1144946725. The cubic root of 1340520153 is about 1102.6164035034.

Adding to 1340520153 its reverse (3510250431), we get a palindrome (4850770584).

The spelling of 1340520153 in words is "one billion, three hundred forty million, five hundred twenty thousand, one hundred fifty-three".