1301549379 has 16 divisors (see below), whose sum is σ = 1869606144. Its totient is φ = 800647200.

The previous prime is 1301549363. The next prime is 1301549423. The reversal of 1301549379 is 9739451031.

It is not a de Polignac number, because 1301549379 - 2⁴ = 1301549363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1301549379.

It is not an unprimeable number, because it can be changed into a prime (1301549309) 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, 138624 + ... + 147714.

It is an arithmetic number, because the mean of its divisors is an integer number (116850384).

Almost surely, 2^1301549379 is an apocalyptic number.

1301549379 is a deficient number, since it is larger than the sum of its proper divisors (568056765).

1301549379 is a wasteful number, since it uses less digits than its factorization.

1301549379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12778.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 1301549379 is about 36076.9923774142. The cubic root of 1301549379 is about 1091.8262958485.

The spelling of 1301549379 in words is "one billion, three hundred one million, five hundred forty-nine thousand, three hundred seventy-nine".