3720401145 has 32 divisors (see below), whose sum is σ = 6647667840. Its totient is φ = 1974127680.

The previous prime is 3720401123. The next prime is 3720401203. The reversal of 3720401145 is 5411040273.

3720401145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3720401145 - 2⁶ = 3720401081 is a prime.

It is a super-2 number, since 2×3720401145² = 27682769359434622050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 43351 + ... + 96540.

It is an arithmetic number, because the mean of its divisors is an integer number (207739620).

Almost surely, 2^3720401145 is an apocalyptic number.

It is an amenable number.

3720401145 is a deficient number, since it is larger than the sum of its proper divisors (2927266695).

3720401145 is a wasteful number, since it uses less digits than its factorization.

3720401145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140102 (or 140096 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 3720401145 is about 60995.0911549446. The cubic root of 3720401145 is about 1549.5178722487.

The spelling of 3720401145 in words is "three billion, seven hundred twenty million, four hundred one thousand, one hundred forty-five".