4156738213 has 4 divisors (see below), whose sum is σ = 4167706240. Its totient is φ = 4145770188.

The previous prime is 4156738207. The next prime is 4156738231. The reversal of 4156738213 is 3128376514.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4156738213 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 (4156738283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5483445 + ... + 5484202.

It is an arithmetic number, because the mean of its divisors is an integer number (1041926560).

Almost surely, 2^4156738213 is an apocalyptic number.

It is an amenable number.

4156738213 is a deficient number, since it is larger than the sum of its proper divisors (10968027).

4156738213 is a wasteful number, since it uses less digits than its factorization.

4156738213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10968026.

The product of its digits is 120960, while the sum is 40.

The square root of 4156738213 is about 64472.7710975727. The cubic root of 4156738213 is about 1607.8698489424.

The spelling of 4156738213 in words is "four billion, one hundred fifty-six million, seven hundred thirty-eight thousand, two hundred thirteen".