145001755 has 8 divisors (see below), whose sum is σ = 184237632. Its totient is φ = 109177728.

The previous prime is 145001743. The next prime is 145001771. The reversal of 145001755 is 557100541.

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 145001755 - 2⁵ = 145001723 is a prime.

It is a Duffinian number.

145001755 is a modest number, since divided by 1755 gives 145 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852867 + ... + 853036.

It is an arithmetic number, because the mean of its divisors is an integer number (23029704).

Almost surely, 2^145001755 is an apocalyptic number.

145001755 is a deficient number, since it is larger than the sum of its proper divisors (39235877).

145001755 is a wasteful number, since it uses less digits than its factorization.

145001755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705925.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 145001755 is about 12041.6674509804. The cubic root of 145001755 is about 525.3609067917.

The spelling of 145001755 in words is "one hundred forty-five million, one thousand, seven hundred fifty-five".