1301012139 has 16 divisors (see below), whose sum is σ = 1983709440. Its totient is φ = 742980000.

The previous prime is 1301012117. The next prime is 1301012161. The reversal of 1301012139 is 9312101031.

It is an interprime number because it is at equal distance from previous prime (1301012117) and next prime (1301012161).

It is not a de Polignac number, because 1301012139 - 2⁸ = 1301011883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1301012639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17764 + ... + 54014.

It is an arithmetic number, because the mean of its divisors is an integer number (123981840).

Almost surely, 2^1301012139 is an apocalyptic number.

1301012139 is a deficient number, since it is larger than the sum of its proper divisors (682697301).

1301012139 is a wasteful number, since it uses less digits than its factorization.

1301012139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37970.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1301012139 is about 36069.5458662845. The cubic root of 1301012139 is about 1091.6760509446.

The spelling of 1301012139 in words is "one billion, three hundred one million, twelve thousand, one hundred thirty-nine".