1301138569 has 4 divisors (see below), whose sum is σ = 1306322640. Its totient is φ = 1295954500.

The previous prime is 1301138533. The next prime is 1301138581. The reversal of 1301138569 is 9658311031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1301138569 - 2¹⁷ = 1301007497 is a prime.

It is a super-2 number, since 2×1301138569² = 3385923151478735522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301138869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2591659 + ... + 2592160.

It is an arithmetic number, because the mean of its divisors is an integer number (326580660).

Almost surely, 2^1301138569 is an apocalyptic number.

It is an amenable number.

1301138569 is a deficient number, since it is larger than the sum of its proper divisors (5184071).

1301138569 is an equidigital number, since it uses as much as digits as its factorization.

1301138569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5184070.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 1301138569 is about 36071.2984102319. The cubic root of 1301138569 is about 1091.7114121654.

The spelling of 1301138569 in words is "one billion, three hundred one million, one hundred thirty-eight thousand, five hundred sixty-nine".