3721145003 has 8 divisors (see below), whose sum is σ = 3972165120. Its totient is φ = 3475641960.

The previous prime is 3721144993. The next prime is 3721145009. The reversal of 3721145003 is 3005411273.

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 3721145003 - 2⁶ = 3721144939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3721145009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1377875 + ... + 1380572.

It is an arithmetic number, because the mean of its divisors is an integer number (496520640).

Almost surely, 2^3721145003 is an apocalyptic number.

3721145003 is a deficient number, since it is larger than the sum of its proper divisors (251020117).

3721145003 is a wasteful number, since it uses less digits than its factorization.

3721145003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758537.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 3721145003 is about 61001.1885376015. The cubic root of 3721145003 is about 1549.6211357061.

Adding to 3721145003 its reverse (3005411273), we get a palindrome (6726556276).

The spelling of 3721145003 in words is "three billion, seven hundred twenty-one million, one hundred forty-five thousand, three".