34072155 has 24 divisors (see below), whose sum is σ = 63602448. Its totient is φ = 16773696.

The previous prime is 34072151. The next prime is 34072169. The reversal of 34072155 is 55127043.

It is a happy number.

It is not a de Polignac number, because 34072155 - 2² = 34072151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34072151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28537 + ... + 29706.

It is an arithmetic number, because the mean of its divisors is an integer number (2650102).

Almost surely, 2^34072155 is an apocalyptic number.

34072155 is a deficient number, since it is larger than the sum of its proper divisors (29530293).

34072155 is a wasteful number, since it uses less digits than its factorization.

34072155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58267 (or 58264 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 34072155 is about 5837.1358558800. The cubic root of 34072155 is about 324.1901889768.

Adding to 34072155 its reverse (55127043), we get a palindrome (89199198).

The spelling of 34072155 in words is "thirty-four million, seventy-two thousand, one hundred fifty-five".