748530139 has 8 divisors (see below), whose sum is σ = 865075680. Its totient is φ = 634387776.

The previous prime is 748530127. The next prime is 748530157. The reversal of 748530139 is 931035847.

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 748530139 - 2⁷ = 748530011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (748534139) 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, 600124 + ... + 601369.

It is an arithmetic number, because the mean of its divisors is an integer number (108134460).

Almost surely, 2^748530139 is an apocalyptic number.

748530139 is a deficient number, since it is larger than the sum of its proper divisors (116545541).

748530139 is a wasteful number, since it uses less digits than its factorization.

748530139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201589.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 748530139 is about 27359.2788464901. The cubic root of 748530139 is about 907.9663716546.

The spelling of 748530139 in words is "seven hundred forty-eight million, five hundred thirty thousand, one hundred thirty-nine".