349831153 has 4 divisors (see below), whose sum is σ = 399807040. Its totient is φ = 299855268.

The previous prime is 349831133. The next prime is 349831171. The reversal of 349831153 is 351138943.

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: 351138943 = 19 ⋅18480997.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349831153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349831103) 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, 24987933 + ... + 24987946.

It is an arithmetic number, because the mean of its divisors is an integer number (99951760).

Almost surely, 2^349831153 is an apocalyptic number.

It is an amenable number.

349831153 is a deficient number, since it is larger than the sum of its proper divisors (49975887).

349831153 is an equidigital number, since it uses as much as digits as its factorization.

349831153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49975886.

The product of its digits is 38880, while the sum is 37.

The square root of 349831153 is about 18703.7737636018. The cubic root of 349831153 is about 704.6165297163.

The spelling of 349831153 in words is "three hundred forty-nine million, eight hundred thirty-one thousand, one hundred fifty-three".