749453147 has 4 divisors (see below), whose sum is σ = 751847880. Its totient is φ = 747058416.

The previous prime is 749453129. The next prime is 749453189. The reversal of 749453147 is 741354947.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741354947 = 3583 ⋅206909.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749453147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 749453098 and 749453107.

It is not an unprimeable number, because it can be changed into a prime (749452147) 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, 1196897 + ... + 1197522.

It is an arithmetic number, because the mean of its divisors is an integer number (187961970).

Almost surely, 2^749453147 is an apocalyptic number.

749453147 is a deficient number, since it is larger than the sum of its proper divisors (2394733).

749453147 is a wasteful number, since it uses less digits than its factorization.

749453147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394732.

The product of its digits is 423360, while the sum is 44.

The square root of 749453147 is about 27376.1419305205. The cubic root of 749453147 is about 908.3394209806.

The spelling of 749453147 in words is "seven hundred forty-nine million, four hundred fifty-three thousand, one hundred forty-seven".