3729145 has 24 divisors (see below), whose sum is σ = 5384448. Its totient is φ = 2469600.

The previous prime is 3729109. The next prime is 3729157. The reversal of 3729145 is 5419273.

3729145 = T₃₇ + T₃₈ + ... + T₂₈₁.

It is not a de Polignac number, because 3729145 - 2⁷ = 3729017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a d-powerful number, because it can be written as 3¹¹ + 7⁵ + 2¹¹ + 9⁶ + 1 + 4¹⁰ + 5⁹ .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7350 + ... + 7840.

It is an arithmetic number, because the mean of its divisors is an integer number (224352).

Almost surely, 2^3729145 is an apocalyptic number.

3729145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3729145 is a deficient number, since it is larger than the sum of its proper divisors (1655303).

3729145 is a wasteful number, since it uses less digits than its factorization.

3729145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 534 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 3729145 is about 1931.0994277872. The cubic root of 3729145 is about 155.0730838145.

3729145 divided by its sum of digits (31) gives a triangular number (120295 = T₄₉₀).

The spelling of 3729145 in words is "three million, seven hundred twenty-nine thousand, one hundred forty-five".