34145405 has 12 divisors (see below), whose sum is σ = 47664540. Its totient is φ = 23413824.

The previous prime is 34145399. The next prime is 34145417. The reversal of 34145405 is 50454143.

It can be written as a sum of positive squares in 2 ways, for example, as 8602489 + 25542916 = 2933^2 + 5054^2 .

It is not a de Polignac number, because 34145405 - 2⁴ = 34145389 is a prime.

It is a super-2 number, since 2×34145405² = 2331817365228050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69440 + ... + 69929.

It is an arithmetic number, because the mean of its divisors is an integer number (3972045).

Almost surely, 2^34145405 is an apocalyptic number.

34145405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34145405 is a deficient number, since it is larger than the sum of its proper divisors (13519135).

34145405 is a wasteful number, since it uses less digits than its factorization.

34145405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139388 (or 139381 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 34145405 is about 5843.4069685416. The cubic root of 34145405 is about 324.4223427125.

Adding to 34145405 its reverse (50454143), we get a palindrome (84599548).

The spelling of 34145405 in words is "thirty-four million, one hundred forty-five thousand, four hundred five".