345126253 has 4 divisors (see below), whose sum is σ = 348351840. Its totient is φ = 341900668.

The previous prime is 345126251. The next prime is 345126263. The reversal of 345126253 is 352621543.

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.

It is a cyclic number.

It is not a de Polignac number, because 345126253 - 2¹ = 345126251 is a prime.

It is a super-2 number, since 2×345126253² = 238224261019640018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345126251) 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, 1612633 + ... + 1612846.

It is an arithmetic number, because the mean of its divisors is an integer number (87087960).

Almost surely, 2^345126253 is an apocalyptic number.

It is an amenable number.

345126253 is a deficient number, since it is larger than the sum of its proper divisors (3225587).

345126253 is a wasteful number, since it uses less digits than its factorization.

345126253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225586.

The product of its digits is 21600, while the sum is 31.

The square root of 345126253 is about 18577.5739266461. The cubic root of 345126253 is about 701.4434520608.

Adding to 345126253 its reverse (352621543), we get a palindrome (697747796).

The spelling of 345126253 in words is "three hundred forty-five million, one hundred twenty-six thousand, two hundred fifty-three".