34520155 has 8 divisors (see below), whose sum is σ = 42434784. Its totient is φ = 26942400.

The previous prime is 34520107. The next prime is 34520159. The reversal of 34520155 is 55102543.

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

It is not a de Polignac number, because 34520155 - 2¹³ = 34511963 is a prime.

It is a super-2 number, since 2×34520155² = 2383282202448050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34520159) 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, 83991 + ... + 84400.

It is an arithmetic number, because the mean of its divisors is an integer number (5304348).

Almost surely, 2^34520155 is an apocalyptic number.

34520155 is a deficient number, since it is larger than the sum of its proper divisors (7914629).

34520155 is a wasteful number, since it uses less digits than its factorization.

34520155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168437.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 34520155 is about 5875.3855192659. The cubic root of 34520155 is about 325.6048853320.

Adding to 34520155 its reverse (55102543), we get a palindrome (89622698).

The spelling of 34520155 in words is "thirty-four million, five hundred twenty thousand, one hundred fifty-five".