349745125 has 8 divisors (see below), whose sum is σ = 436482072. Its totient is φ = 279796000.

The previous prime is 349745083. The next prime is 349745183. The reversal of 349745125 is 521547943.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34363044 + 315382081 = 5862^2 + 17759^2 .

It is a de Polignac number, because none of the positive numbers 2^k-349745125 is a prime.

It is a super-2 number, since 2×349745125² = 244643304922531250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1398856 + ... + 1399105.

It is an arithmetic number, because the mean of its divisors is an integer number (54560259).

Almost surely, 2^349745125 is an apocalyptic number.

It is an amenable number.

349745125 is a deficient number, since it is larger than the sum of its proper divisors (86736947).

349745125 is an equidigital number, since it uses as much as digits as its factorization.

349745125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797976 (or 2797966 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 349745125 is about 18701.4738723984. The cubic root of 349745125 is about 704.5587668787.

The spelling of 349745125 in words is "three hundred forty-nine million, seven hundred forty-five thousand, one hundred twenty-five".