345152553 has 4 divisors (see below), whose sum is σ = 460203408. Its totient is φ = 230101700.

The previous prime is 345152531. The next prime is 345152557. The reversal of 345152553 is 355251543.

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: 355251543 = 3 ⋅118417181.

It is a cyclic number.

It is not a de Polignac number, because 345152553 - 2²⁴ = 328375337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345152557) 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, 57525423 + ... + 57525428.

It is an arithmetic number, because the mean of its divisors is an integer number (115050852).

Almost surely, 2^345152553 is an apocalyptic number.

It is an amenable number.

345152553 is a deficient number, since it is larger than the sum of its proper divisors (115050855).

345152553 is a wasteful number, since it uses less digits than its factorization.

345152553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115050854.

The product of its digits is 45000, while the sum is 33.

The square root of 345152553 is about 18578.2817558568. The cubic root of 345152553 is about 701.4612692065.

The spelling of 345152553 in words is "three hundred forty-five million, one hundred fifty-two thousand, five hundred fifty-three".