1239070749 has 8 divisors (see below), whose sum is σ = 1888107840. Its totient is φ = 708040416.

The previous prime is 1239070747. The next prime is 1239070751. The reversal of 1239070749 is 9470709321.

It is an interprime number because it is at equal distance from previous prime (1239070747) and next prime (1239070751).

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

It is not a de Polignac number, because 1239070749 - 2¹ = 1239070747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1239070749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239070747) 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, 29501664 + ... + 29501705.

It is an arithmetic number, because the mean of its divisors is an integer number (236013480).

Almost surely, 2^1239070749 is an apocalyptic number.

It is an amenable number.

1239070749 is a deficient number, since it is larger than the sum of its proper divisors (649037091).

1239070749 is an equidigital number, since it uses as much as digits as its factorization.

1239070749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59003379.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 1239070749 is about 35200.4367728584. The cubic root of 1239070749 is about 1074.0686359668.

The spelling of 1239070749 in words is "one billion, two hundred thirty-nine million, seventy thousand, seven hundred forty-nine".