1046266139 has 4 divisors (see below), whose sum is σ = 1107811224. Its totient is φ = 984721056.

The previous prime is 1046266121. The next prime is 1046266157. The reversal of 1046266139 is 9316626401.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1046266121) and next prime (1046266157).

It is a de Polignac number, because none of the positive numbers 2^k-1046266139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1046266339) 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, 30772517 + ... + 30772550.

It is an arithmetic number, because the mean of its divisors is an integer number (276952806).

Almost surely, 2^1046266139 is an apocalyptic number.

1046266139 is a deficient number, since it is larger than the sum of its proper divisors (61545085).

1046266139 is an equidigital number, since it uses as much as digits as its factorization.

1046266139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61545084.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 1046266139 is about 32346.0374543776. The cubic root of 1046266139 is about 1015.1901377237.

The spelling of 1046266139 in words is "one billion, forty-six million, two hundred sixty-six thousand, one hundred thirty-nine".