345135649 has 6 divisors (see below), whose sum is σ = 366632294. Its totient is φ = 324833280.

The previous prime is 345135643. The next prime is 345135653. The reversal of 345135649 is 946531543.

It can be written as a sum of positive squares in 3 ways, for example, as 60606225 + 284529424 = 7785^2 + 16868^2 .

It is not a de Polignac number, because 345135649 - 2²¹ = 343038497 is a prime.

It is a super-3 number, since 3×345135649³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345135643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 596832 + ... + 597409.

Almost surely, 2^345135649 is an apocalyptic number.

It is an amenable number.

345135649 is a deficient number, since it is larger than the sum of its proper divisors (21496645).

345135649 is a wasteful number, since it uses less digits than its factorization.

345135649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194275 (or 1194258 counting only the distinct ones).

The product of its digits is 194400, while the sum is 40.

The square root of 345135649 is about 18577.8268104749. The cubic root of 345135649 is about 701.4498175602.

The spelling of 345135649 in words is "three hundred forty-five million, one hundred thirty-five thousand, six hundred forty-nine".