145553155 has 32 divisors (see below), whose sum is σ = 195148800. Its totient is φ = 103334400.

The previous prime is 145553123. The next prime is 145553171. The reversal of 145553155 is 551355541.

145553155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145553155 - 2⁵ = 145553123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145553155.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 603835 + ... + 604075.

It is an arithmetic number, because the mean of its divisors is an integer number (6098400).

Almost surely, 2^145553155 is an apocalyptic number.

145553155 is a deficient number, since it is larger than the sum of its proper divisors (49595645).

145553155 is a wasteful number, since it uses less digits than its factorization.

145553155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475.

The product of its digits is 37500, while the sum is 34.

The square root of 145553155 is about 12064.5412262547. The cubic root of 145553155 is about 526.0259966333.

The spelling of 145553155 in words is "one hundred forty-five million, five hundred fifty-three thousand, one hundred fifty-five".