749139255 has 48 divisors (see below), whose sum is σ = 1390465440. Its totient is φ = 371779584.

The previous prime is 749139229. The next prime is 749139257. The reversal of 749139255 is 552931947.

It is a happy number.

It is not a de Polignac number, because 749139255 - 2¹³ = 749131063 is a prime.

It is a super-2 number, since 2×749139255² = 1122419246763910050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 749139255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749139257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62584 + ... + 73586.

It is an arithmetic number, because the mean of its divisors is an integer number (28968030).

Almost surely, 2^749139255 is an apocalyptic number.

749139255 is a deficient number, since it is larger than the sum of its proper divisors (641326185).

749139255 is a wasteful number, since it uses less digits than its factorization.

749139255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11120 (or 11117 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 749139255 is about 27370.4083820465. The cubic root of 749139255 is about 908.2125905962.

The spelling of 749139255 in words is "seven hundred forty-nine million, one hundred thirty-nine thousand, two hundred fifty-five".