34145421 has 8 divisors (see below), whose sum is σ = 46273824. Its totient is φ = 22390320.

The previous prime is 34145417. The next prime is 34145431. The reversal of 34145421 is 12454143.

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

It is not a de Polignac number, because 34145421 - 2² = 34145417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34145391 and 34145400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34145431) 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, 93111 + ... + 93476.

It is an arithmetic number, because the mean of its divisors is an integer number (5784228).

Almost surely, 2^34145421 is an apocalyptic number.

It is an amenable number.

34145421 is a deficient number, since it is larger than the sum of its proper divisors (12128403).

34145421 is a wasteful number, since it uses less digits than its factorization.

34145421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186651.

The product of its digits is 1920, while the sum is 24.

The square root of 34145421 is about 5843.4083376057. The cubic root of 34145421 is about 324.4223933855.

Adding to 34145421 its reverse (12454143), we get a palindrome (46599564).

The spelling of 34145421 in words is "thirty-four million, one hundred forty-five thousand, four hundred twenty-one".