345273153 has 4 divisors (see below), whose sum is σ = 460364208. Its totient is φ = 230182100.

The previous prime is 345273143. The next prime is 345273157. The reversal of 345273153 is 351372543.

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: 351372543 = 3 ⋅117124181.

It is a cyclic number.

It is not a de Polignac number, because 345273153 - 2⁵ = 345273121 is a prime.

It is a super-2 number, since 2×345273153² = 238427100365122818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345273157) 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, 57545523 + ... + 57545528.

It is an arithmetic number, because the mean of its divisors is an integer number (115091052).

Almost surely, 2^345273153 is an apocalyptic number.

It is an amenable number.

345273153 is a deficient number, since it is larger than the sum of its proper divisors (115091055).

345273153 is a wasteful number, since it uses less digits than its factorization.

345273153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115091054.

The product of its digits is 37800, while the sum is 33.

The square root of 345273153 is about 18581.5271977305. The cubic root of 345273153 is about 701.5429590538.

The spelling of 345273153 in words is "three hundred forty-five million, two hundred seventy-three thousand, one hundred fifty-three".