1611251 has 2 divisors, whose sum is σ = 1611252. Its totient is φ = 1611250.

The previous prime is 1611241. The next prime is 1611289. The reversal of 1611251 is 1521161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1611251 - 2⁶ = 1611187 is a prime.

It is a super-2 number, since 2×1611251² = 5192259570002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1611241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805625 + 805626.

It is an arithmetic number, because the mean of its divisors is an integer number (805626).

2^1611251 is an apocalyptic number.

1611251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1611251 is an equidigital number, since it uses as much as digits as its factorization.

1611251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60, while the sum is 17.

The square root of 1611251 is about 1269.3506213809. The cubic root of 1611251 is about 117.2342204584.

The spelling of 1611251 in words is "one million, six hundred eleven thousand, two hundred fifty-one".