147971903 has 4 divisors (see below), whose sum is σ = 154405488. Its totient is φ = 141538320.

The previous prime is 147971869. The next prime is 147971921. The reversal of 147971903 is 309179741.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 147971903 - 2⁸ = 147971647 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 (147971983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3216758 + ... + 3216803.

It is an arithmetic number, because the mean of its divisors is an integer number (38601372).

Almost surely, 2^147971903 is an apocalyptic number.

147971903 is a deficient number, since it is larger than the sum of its proper divisors (6433585).

147971903 is an equidigital number, since it uses as much as digits as its factorization.

147971903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6433584.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 147971903 is about 12164.3702261975. The cubic root of 147971903 is about 528.9237719262.

The spelling of 147971903 in words is "one hundred forty-seven million, nine hundred seventy-one thousand, nine hundred three".