3721545157 has 16 divisors (see below), whose sum is σ = 4369166784. Its totient is φ = 3132000000.

The previous prime is 3721545151. The next prime is 3721545167. The reversal of 3721545157 is 7515451273.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3721545157 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 (3721545151) 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 15 ways as a sum of consecutive naturals, for example, 151719 + ... + 174532.

It is an arithmetic number, because the mean of its divisors is an integer number (273072924).

Almost surely, 2^3721545157 is an apocalyptic number.

It is an amenable number.

3721545157 is a deficient number, since it is larger than the sum of its proper divisors (647621627).

3721545157 is a wasteful number, since it uses less digits than its factorization.

3721545157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326340.

The product of its digits is 147000, while the sum is 40.

The square root of 3721545157 is about 61004.4683363440. The cubic root of 3721545157 is about 1549.6766799781.

The spelling of 3721545157 in words is "three billion, seven hundred twenty-one million, five hundred forty-five thousand, one hundred fifty-seven".