1301428749 has 8 divisors (see below), whose sum is σ = 1738290240. Its totient is φ = 866093216.

The previous prime is 1301428741. The next prime is 1301428759. The reversal of 1301428749 is 9478241031.

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

It is a cyclic number.

It is not a de Polignac number, because 1301428749 - 2³ = 1301428741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301428741) 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, 379497 + ... + 382910.

It is an arithmetic number, because the mean of its divisors is an integer number (217286280).

Almost surely, 2^1301428749 is an apocalyptic number.

It is an amenable number.

1301428749 is a deficient number, since it is larger than the sum of its proper divisors (436861491).

1301428749 is an equidigital number, since it uses as much as digits as its factorization.

1301428749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762979.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1301428749 is about 36075.3204975368. The cubic root of 1301428749 is about 1091.7925639806.

The spelling of 1301428749 in words is "one billion, three hundred one million, four hundred twenty-eight thousand, seven hundred forty-nine".