345126029 has 4 divisors (see below), whose sum is σ = 352469184. Its totient is φ = 337782876.

The previous prime is 345126011. The next prime is 345126031. The reversal of 345126029 is 920621543.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 920621543 = 8537 ⋅107839.

It is a cyclic number.

It is not a de Polignac number, because 345126029 - 2²⁸ = 76690573 is a prime.

It is a super-2 number, since 2×345126029² = 238223951786617682, 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 = 345125986 and 345126004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345126049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3671507 + ... + 3671600.

It is an arithmetic number, because the mean of its divisors is an integer number (88117296).

Almost surely, 2^345126029 is an apocalyptic number.

It is an amenable number.

345126029 is a deficient number, since it is larger than the sum of its proper divisors (7343155).

345126029 is an equidigital number, since it uses as much as digits as its factorization.

345126029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7343154.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 345126029 is about 18577.5678978708. The cubic root of 345126029 is about 701.4433003063.

The spelling of 345126029 in words is "three hundred forty-five million, one hundred twenty-six thousand, twenty-nine".