34215145 has 8 divisors (see below), whose sum is σ = 42843456. Its totient is φ = 26181936.

The previous prime is 34215131. The next prime is 34215149. The reversal of 34215145 is 54151243.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34215145 - 2⁷ = 34215017 is a prime.

It is a super-2 number, since 2×34215145² = 2341352294742050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34215149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148647 + ... + 148876.

It is an arithmetic number, because the mean of its divisors is an integer number (5355432).

Almost surely, 2^34215145 is an apocalyptic number.

It is an amenable number.

34215145 is a deficient number, since it is larger than the sum of its proper divisors (8628311).

34215145 is a wasteful number, since it uses less digits than its factorization.

34215145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297551.

The product of its digits is 2400, while the sum is 25.

The square root of 34215145 is about 5849.3713337418. The cubic root of 34215145 is about 324.6430637541.

Adding to 34215145 its reverse (54151243), we get a palindrome (88366388).

The spelling of 34215145 in words is "thirty-four million, two hundred fifteen thousand, one hundred forty-five".