7129739254 has 8 divisors (see below), whose sum is σ = 11666846088. Its totient is φ = 3240790560.

The previous prime is 7129739219. The next prime is 7129739263. The reversal of 7129739254 is 4529379217.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7129739198 and 7129739207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162039507 + ... + 162039550.

It is an arithmetic number, because the mean of its divisors is an integer number (1458355761).

Almost surely, 2^7129739254 is an apocalyptic number.

7129739254 is a deficient number, since it is larger than the sum of its proper divisors (4537106834).

7129739254 is a wasteful number, since it uses less digits than its factorization.

7129739254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324079070.

The product of its digits is 952560, while the sum is 49.

The square root of 7129739254 is about 84437.7833318710. The cubic root of 7129739254 is about 1924.6771149232.

It can be divided in two parts, 712973 and 9254, that added together give a palindrome (722227).

The spelling of 7129739254 in words is "seven billion, one hundred twenty-nine million, seven hundred thirty-nine thousand, two hundred fifty-four".