147499775 has 6 divisors (see below), whose sum is σ = 182899752. Its totient is φ = 117999800.

The previous prime is 147499747. The next prime is 147499777. The reversal of 147499775 is 577994741.

It is a happy number.

It is not a de Polignac number, because 147499775 - 2¹² = 147495679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147499777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2949971 + ... + 2950020.

It is an arithmetic number, because the mean of its divisors is an integer number (30483292).

Almost surely, 2^147499775 is an apocalyptic number.

147499775 is a deficient number, since it is larger than the sum of its proper divisors (35399977).

147499775 is an equidigital number, since it uses as much as digits as its factorization.

147499775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5900001 (or 5899996 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 53.

The square root of 147499775 is about 12144.9485383842. The cubic root of 147499775 is about 528.3606339711.

The spelling of 147499775 in words is "one hundred forty-seven million, four hundred ninety-nine thousand, seven hundred seventy-five".