345070553 has 4 divisors (see below), whose sum is σ = 345618048. Its totient is φ = 344523060.

The previous prime is 345070549. The next prime is 345070589. The reversal of 345070553 is 355070543.

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: 355070543 = 617 ⋅575479.

It is a cyclic number.

It is not a de Polignac number, because 345070553 - 2² = 345070549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345070513) 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, 272801 + ... + 274062.

It is an arithmetic number, because the mean of its divisors is an integer number (86404512).

Almost surely, 2^345070553 is an apocalyptic number.

It is an amenable number.

345070553 is a deficient number, since it is larger than the sum of its proper divisors (547495).

345070553 is an equidigital number, since it uses as much as digits as its factorization.

345070553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547494.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 345070553 is about 18576.0747468350. The cubic root of 345070553 is about 701.4057146609.

The spelling of 345070553 in words is "three hundred forty-five million, seventy thousand, five hundred fifty-three".