348921031 has 2 divisors, whose sum is σ = 348921032. Its totient is φ = 348921030.

The previous prime is 348920987. The next prime is 348921169. The reversal of 348921031 is 130129843.

It is a weak prime.

It is an emirp because it is prime and its reverse (130129843) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 348921031 - 2²⁵ = 315366599 is a prime.

It is a super-2 number, since 2×348921031² = 243491771748205922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 348920984 and 348921002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348927031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174460515 + 174460516.

It is an arithmetic number, because the mean of its divisors is an integer number (174460516).

Almost surely, 2^348921031 is an apocalyptic number.

348921031 is a deficient number, since it is larger than the sum of its proper divisors (1).

348921031 is an equidigital number, since it uses as much as digits as its factorization.

348921031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 348921031 is about 18679.4280158682. The cubic root of 348921031 is about 704.0049547419.

The spelling of 348921031 in words is "three hundred forty-eight million, nine hundred twenty-one thousand, thirty-one".