1301137506 has 40 divisors (see below), whose sum is σ = 2920279824. Its totient is φ = 433003320.

The previous prime is 1301137493. The next prime is 1301137511. The reversal of 1301137506 is 6057311031.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1301137506.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97921 + ... + 110411.

Almost surely, 2^1301137506 is an apocalyptic number.

1301137506 is an abundant number, since it is smaller than the sum of its proper divisors (1619142318).

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

1301137506 is a wasteful number, since it uses less digits than its factorization.

1301137506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13148 (or 13139 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 1301137506 is about 36071.2836755223. The cubic root of 1301137506 is about 1091.7111148643.

Adding to 1301137506 its reverse (6057311031), we get a palindrome (7358448537).

The spelling of 1301137506 in words is "one billion, three hundred one million, one hundred thirty-seven thousand, five hundred six".