6149861 has 2 divisors, whose sum is σ = 6149862. Its totient is φ = 6149860.

The previous prime is 6149851. The next prime is 6149867. The reversal of 6149861 is 1689416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5909761 + 240100 = 2431^2 + 490^2 .

It is a cyclic number.

It is not a de Polignac number, because 6149861 - 2⁶ = 6149797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6149867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3074930 + 3074931.

It is an arithmetic number, because the mean of its divisors is an integer number (3074931).

Almost surely, 2^6149861 is an apocalyptic number.

It is an amenable number.

6149861 is a deficient number, since it is larger than the sum of its proper divisors (1).

6149861 is an equidigital number, since it uses as much as digits as its factorization.

6149861 is an odious number, because the sum of its binary digits is odd.

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

The square root of 6149861 is about 2479.8913282642. The cubic root of 6149861 is about 183.2124996239.

The spelling of 6149861 in words is "six million, one hundred forty-nine thousand, eight hundred sixty-one".