7123085434 has 4 divisors (see below), whose sum is σ = 10684628154. Its totient is φ = 3561542716.

The previous prime is 7123085383. The next prime is 7123085461. The reversal of 7123085434 is 4345803217.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6698931409 + 424154025 = 81847^2 + 20595^2 .

It is a super-2 number, since 2×7123085434² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7123085393 and 7123085402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780771357 + ... + 1780771360.

Almost surely, 2^7123085434 is an apocalyptic number.

7123085434 is a deficient number, since it is larger than the sum of its proper divisors (3561542720).

7123085434 is a wasteful number, since it uses less digits than its factorization.

7123085434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3561542719.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 7123085434 is about 84398.3734084964. The cubic root of 7123085434 is about 1924.0781944223.

The spelling of 7123085434 in words is "seven billion, one hundred twenty-three million, eighty-five thousand, four hundred thirty-four".