355123493 has 4 divisors (see below), whose sum is σ = 362679360. Its totient is φ = 347567628.

The previous prime is 355123463. The next prime is 355123511. The reversal of 355123493 is 394321553.

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 355123493 - 2¹² = 355119397 is a prime.

It is a super-2 number, since 2×355123493² = 252225390561042098, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355123463) 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, 3777863 + ... + 3777956.

It is an arithmetic number, because the mean of its divisors is an integer number (90669840).

Almost surely, 2^355123493 is an apocalyptic number.

It is an amenable number.

355123493 is a deficient number, since it is larger than the sum of its proper divisors (7555867).

355123493 is an equidigital number, since it uses as much as digits as its factorization.

355123493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7555866.

The product of its digits is 48600, while the sum is 35.

The square root of 355123493 is about 18844.7205604116. The cubic root of 355123493 is about 708.1519704472.

The spelling of 355123493 in words is "three hundred fifty-five million, one hundred twenty-three thousand, four hundred ninety-three".