147975 has 12 divisors (see below), whose sum is σ = 244776. Its totient is φ = 78880.

The previous prime is 147949. The next prime is 147977. The reversal of 147975 is 579741.

It is not a de Polignac number, because 147975 - 2¹² = 143879 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 912 + ... + 1061.

It is an arithmetic number, because the mean of its divisors is an integer number (20398).

2¹⁴⁷⁹⁷⁵ is an apocalyptic number.

147975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

147975 is a deficient number, since it is larger than the sum of its proper divisors (96801).

147975 is a wasteful number, since it uses less digits than its factorization.

147975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986 (or 1981 counting only the distinct ones).

The product of its digits is 8820, while the sum is 33.

The square root of 147975 is about 384.6751876584. The cubic root of 147975 is about 52.8927461963.

The spelling of 147975 in words is "one hundred forty-seven thousand, nine hundred seventy-five".