1506611 has 2 divisors, whose sum is σ = 1506612. Its totient is φ = 1506610.

The previous prime is 1506607. The next prime is 1506613. The reversal of 1506611 is 1166051.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1506611 - 2² = 1506607 is a prime.

Together with 1506613, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1506613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 753305 + 753306.

It is an arithmetic number, because the mean of its divisors is an integer number (753306).

2^1506611 is an apocalyptic number.

1506611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1506611 is an equidigital number, since it uses as much as digits as its factorization.

1506611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1506611 is about 1227.4408336046. The cubic root of 1506611 is about 114.6393490375.

The spelling of 1506611 in words is "one million, five hundred six thousand, six hundred eleven".