356345009 has 4 divisors (see below), whose sum is σ = 356778816. Its totient is φ = 355911204.

The previous prime is 356344993. The next prime is 356345147. The reversal of 356345009 is 900543653.

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: 900543653 = 467 ⋅1928359.

It is a cyclic number.

It is not a de Polignac number, because 356345009 - 2⁴ = 356344993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 356345009.

It is not an unprimeable number, because it can be changed into a prime (356345609) 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, 215669 + ... + 217314.

It is an arithmetic number, because the mean of its divisors is an integer number (89194704).

Almost surely, 2^356345009 is an apocalyptic number.

It is an amenable number.

356345009 is a deficient number, since it is larger than the sum of its proper divisors (433807).

356345009 is an equidigital number, since it uses as much as digits as its factorization.

356345009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433806.

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

The square root of 356345009 is about 18877.1027702876. The cubic root of 356345009 is about 708.9629832077.

The spelling of 356345009 in words is "three hundred fifty-six million, three hundred forty-five thousand, nine".