145929155 has 8 divisors (see below), whose sum is σ = 175545600. Its totient is φ = 116456256.

The previous prime is 145929151. The next prime is 145929169. The reversal of 145929155 is 551929541.

145929155 = 2191² + 2192² + ... + 2220².

145929155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 145929155 - 2² = 145929151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145929151) 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, 33635 + ... + 37724.

It is an arithmetic number, because the mean of its divisors is an integer number (21943200).

Almost surely, 2^145929155 is an apocalyptic number.

145929155 is a deficient number, since it is larger than the sum of its proper divisors (29616445).

145929155 is an equidigital number, since it uses as much as digits as its factorization.

145929155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71773.

The product of its digits is 81000, while the sum is 41.

The square root of 145929155 is about 12080.1140309187. The cubic root of 145929155 is about 526.4785591554.

The spelling of 145929155 in words is "one hundred forty-five million, nine hundred twenty-nine thousand, one hundred fifty-five".