1301429991 has 16 divisors (see below), whose sum is σ = 1749123200. Its totient is φ = 860696928.

The previous prime is 1301429977. The next prime is 1301430017. The reversal of 1301429991 is 1999241031.

It is not a de Polignac number, because 1301429991 - 2¹⁰ = 1301428967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301429191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346200 + ... + 349938.

It is an arithmetic number, because the mean of its divisors is an integer number (109320200).

Almost surely, 2^1301429991 is an apocalyptic number.

1301429991 is a deficient number, since it is larger than the sum of its proper divisors (447693209).

1301429991 is a wasteful number, since it uses less digits than its factorization.

1301429991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 1301429991 is about 36075.3377115170. The cubic root of 1301429991 is about 1091.7929112927.

The spelling of 1301429991 in words is "one billion, three hundred one million, four hundred twenty-nine thousand, nine hundred ninety-one".