34689145 has 4 divisors (see below), whose sum is σ = 41626980. Its totient is φ = 27751312.

The previous prime is 34689143. The next prime is 34689181. The reversal of 34689145 is 54198643.

34689145 = 1858² + 1859² + ... + 1867².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20820969 + 13868176 = 4563^2 + 3724^2 .

It is a cyclic number.

It is not a de Polignac number, because 34689145 - 2¹ = 34689143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34689098 and 34689107.

It is not an unprimeable number, because it can be changed into a prime (34689143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3468910 + ... + 3468919.

It is an arithmetic number, because the mean of its divisors is an integer number (10406745).

Almost surely, 2^34689145 is an apocalyptic number.

It is an amenable number.

34689145 is a deficient number, since it is larger than the sum of its proper divisors (6937835).

34689145 is an equidigital number, since it uses as much as digits as its factorization.

34689145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6937834.

The product of its digits is 103680, while the sum is 40.

The square root of 34689145 is about 5889.7491457616. The cubic root of 34689145 is about 326.1353428269.

The spelling of 34689145 in words is "thirty-four million, six hundred eighty-nine thousand, one hundred forty-five".