749147143 has 8 divisors (see below), whose sum is σ = 834963120. Its totient is φ = 667969920.

The previous prime is 749147141. The next prime is 749147153. The reversal of 749147143 is 341741947.

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 749147143 - 2¹ = 749147141 is a prime.

It is a super-2 number, since 2×749147143² = 1122442883730124898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 749147096 and 749147105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749147141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1159348 + ... + 1159993.

It is an arithmetic number, because the mean of its divisors is an integer number (104370390).

Almost surely, 2^749147143 is an apocalyptic number.

749147143 is a deficient number, since it is larger than the sum of its proper divisors (85815977).

749147143 is a wasteful number, since it uses less digits than its factorization.

749147143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319377.

The product of its digits is 84672, while the sum is 40.

The square root of 749147143 is about 27370.5524788960. The cubic root of 749147143 is about 908.2157782348.

The spelling of 749147143 in words is "seven hundred forty-nine million, one hundred forty-seven thousand, one hundred forty-three".