1301540664 has 32 divisors (see below), whose sum is σ = 3254757120. Its totient is φ = 433726176.

The previous prime is 1301540623. The next prime is 1301540693. The reversal of 1301540664 is 4660451031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137079 + ... + 146265.

It is an arithmetic number, because the mean of its divisors is an integer number (101711160).

Almost surely, 2^1301540664 is an apocalyptic number.

It is an amenable number.

1301540664 is an abundant number, since it is smaller than the sum of its proper divisors (1953216456).

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

1301540664 is a wasteful number, since it uses less digits than its factorization.

1301540664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15099 (or 15095 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1301540664 is about 36076.8715938619. The cubic root of 1301540664 is about 1091.8238589356.

Adding to 1301540664 its reverse (4660451031), we get a palindrome (5961991695).

The spelling of 1301540664 in words is "one billion, three hundred one million, five hundred forty thousand, six hundred sixty-four".