754147139 has 4 divisors (see below), whose sum is σ = 757384056. Its totient is φ = 750910224.

The previous prime is 754147111. The next prime is 754147169. The reversal of 754147139 is 931741457.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931741457 = 17 ⋅54808321.

It is a cyclic number.

It is not a de Polignac number, because 754147139 - 2²⁴ = 737369923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 754147096 and 754147105.

It is not an unprimeable number, because it can be changed into a prime (754147169) 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, 1618109 + ... + 1618574.

It is an arithmetic number, because the mean of its divisors is an integer number (189346014).

Almost surely, 2^754147139 is an apocalyptic number.

754147139 is a deficient number, since it is larger than the sum of its proper divisors (3236917).

754147139 is a wasteful number, since it uses less digits than its factorization.

754147139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236916.

The product of its digits is 105840, while the sum is 41.

The square root of 754147139 is about 27461.7395479602. The cubic root of 754147139 is about 910.2318529301.

The spelling of 754147139 in words is "seven hundred fifty-four million, one hundred forty-seven thousand, one hundred thirty-nine".