145541755 has 16 divisors (see below), whose sum is σ = 177822720. Its totient is φ = 114329952.

The previous prime is 145541741. The next prime is 145541761. The reversal of 145541755 is 557145541.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145541755 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160012 + ... + 160918.

It is an arithmetic number, because the mean of its divisors is an integer number (11113920).

Almost surely, 2^145541755 is an apocalyptic number.

145541755 is a deficient number, since it is larger than the sum of its proper divisors (32280965).

145541755 is an equidigital number, since it uses as much as digits as its factorization.

145541755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458.

The product of its digits is 70000, while the sum is 37.

The square root of 145541755 is about 12064.0687580932. The cubic root of 145541755 is about 526.0122631558.

The spelling of 145541755 in words is "one hundred forty-five million, five hundred forty-one thousand, seven hundred fifty-five".