6181946 has 4 divisors (see below), whose sum is σ = 9272922. Its totient is φ = 3090972.

The previous prime is 6181943. The next prime is 6181949. The reversal of 6181946 is 6491816.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6181943) and next prime (6181949).

It can be written as a sum of positive squares in only one way, i.e., 4389025 + 1792921 = 2095^2 + 1339^2 .

It is not an unprimeable number, because it can be changed into a prime (6181943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1545485 + ... + 1545488.

Almost surely, 2^6181946 is an apocalyptic number.

6181946 is a deficient number, since it is larger than the sum of its proper divisors (3090976).

6181946 is a wasteful number, since it uses less digits than its factorization.

6181946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090975.

The product of its digits is 10368, while the sum is 35.

The square root of 6181946 is about 2486.3519461251. The cubic root of 6181946 is about 183.5305653337.

The spelling of 6181946 in words is "six million, one hundred eighty-one thousand, nine hundred forty-six".