4145016949 has 16 divisors (see below), whose sum is σ = 4299023872. Its totient is φ = 3993938928.

The previous prime is 4145016937. The next prime is 4145016971. The reversal of 4145016949 is 9496105414.

It is a cyclic number.

It is not a de Polignac number, because 4145016949 - 2¹⁹ = 4144492661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145016919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1251754 + ... + 1255060.

It is an arithmetic number, because the mean of its divisors is an integer number (268688992).

Almost surely, 2^4145016949 is an apocalyptic number.

It is an amenable number.

4145016949 is a deficient number, since it is larger than the sum of its proper divisors (154006923).

4145016949 is a wasteful number, since it uses less digits than its factorization.

4145016949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 4145016949 is about 64381.8060402161. The cubic root of 4145016949 is about 1606.3571236443.

The spelling of 4145016949 in words is "four billion, one hundred forty-five million, sixteen thousand, nine hundred forty-nine".