7149293505 has 12 divisors (see below), whose sum is σ = 12392108820. Its totient is φ = 3812956512.

The previous prime is 7149293461. The next prime is 7149293521. The reversal of 7149293505 is 5053929417.

It is a happy number.

7149293505 is a `hidden beast` number, since 71 + 492 + 93 + 5 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4527136656 + 2622156849 = 67284^2 + 51207^2 .

It is not a de Polignac number, because 7149293505 - 2⁹ = 7149292993 is a prime.

It is a super-2 number, since 2×7149293505² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 158873189 = 7149293505 / (7 + 1 + 4 + 9 + 2 + 9 + 3 + 5 + 0 + 5).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79436550 + ... + 79436639.

It is an arithmetic number, because the mean of its divisors is an integer number (1032675735).

Almost surely, 2^7149293505 is an apocalyptic number.

It is an amenable number.

7149293505 is a deficient number, since it is larger than the sum of its proper divisors (5242815315).

7149293505 is a wasteful number, since it uses less digits than its factorization.

7149293505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158873200 (or 158873197 counting only the distinct ones).

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

The square root of 7149293505 is about 84553.4949307242. The cubic root of 7149293505 is about 1926.4350691066.

The spelling of 7149293505 in words is "seven billion, one hundred forty-nine million, two hundred ninety-three thousand, five hundred five".