307071029 has 8 divisors (see below), whose sum is σ = 321322680. Its totient is φ = 293132736.

The previous prime is 307071019. The next prime is 307071049. The reversal of 307071029 is 920170703.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 205262929 + 101808100 = 14327^2 + 10090^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 307071029 - 2⁸ = 307070773 is a prime.

It is a super-2 number, since 2×307071029² = 188585233702237682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 307070992 and 307071010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307071019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76334 + ... + 80255.

It is an arithmetic number, because the mean of its divisors is an integer number (40165335).

Almost surely, 2^307071029 is an apocalyptic number.

It is an amenable number.

307071029 is a deficient number, since it is larger than the sum of its proper divisors (14251651).

307071029 is a wasteful number, since it uses less digits than its factorization.

307071029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156679.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 307071029 is about 17523.4422702847. The cubic root of 307071029 is about 674.6516933694.

The spelling of 307071029 in words is "three hundred seven million, seventy-one thousand, twenty-nine".