749899135 has 4 divisors (see below), whose sum is σ = 899878968. Its totient is φ = 599919304.

The previous prime is 749899133. The next prime is 749899177. The reversal of 749899135 is 531998947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531998947 = 23 ⋅23130389.

It is a cyclic number.

It is not a de Polignac number, because 749899135 - 2¹ = 749899133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749899133) 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, 74989909 + ... + 74989918.

It is an arithmetic number, because the mean of its divisors is an integer number (224969742).

Almost surely, 2^749899135 is an apocalyptic number.

749899135 is a deficient number, since it is larger than the sum of its proper divisors (149979833).

749899135 is a wasteful number, since it uses less digits than its factorization.

749899135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149979832.

The product of its digits is 2449440, while the sum is 55.

The square root of 749899135 is about 27384.2862788133. The cubic root of 749899135 is about 908.5195648415.

The spelling of 749899135 in words is "seven hundred forty-nine million, eight hundred ninety-nine thousand, one hundred thirty-five".