123580349 has 2 divisors, whose sum is σ = 123580350. Its totient is φ = 123580348.

The previous prime is 123580337. The next prime is 123580417. The reversal of 123580349 is 943085321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96727225 + 26853124 = 9835^2 + 5182^2 .

It is a cyclic number.

It is not a de Polignac number, because 123580349 - 2¹² = 123576253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123580309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61790174 + 61790175.

It is an arithmetic number, because the mean of its divisors is an integer number (61790175).

Almost surely, 2^123580349 is an apocalyptic number.

It is an amenable number.

123580349 is a deficient number, since it is larger than the sum of its proper divisors (1).

123580349 is an equidigital number, since it uses as much as digits as its factorization.

123580349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 123580349 is about 11116.6698700645. The cubic root of 123580349 is about 498.0999205426.

The spelling of 123580349 in words is "one hundred twenty-three million, five hundred eighty thousand, three hundred forty-nine".