6149551 has 2 divisors, whose sum is σ = 6149552. Its totient is φ = 6149550.

The previous prime is 6149543. The next prime is 6149557. The reversal of 6149551 is 1559416.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6149551 - 2³ = 6149543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6149557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3074775 + 3074776.

It is an arithmetic number, because the mean of its divisors is an integer number (3074776).

Almost surely, 2^6149551 is an apocalyptic number.

6149551 is a deficient number, since it is larger than the sum of its proper divisors (1).

6149551 is an equidigital number, since it uses as much as digits as its factorization.

6149551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 31.

The square root of 6149551 is about 2479.8288247377. The cubic root of 6149551 is about 183.2094211354.

The spelling of 6149551 in words is "six million, one hundred forty-nine thousand, five hundred fifty-one".