1260551 has 2 divisors, whose sum is σ = 1260552. Its totient is φ = 1260550.

The previous prime is 1260547. The next prime is 1260569. The reversal of 1260551 is 1550621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1260551 - 2² = 1260547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1260541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630275 + 630276.

It is an arithmetic number, because the mean of its divisors is an integer number (630276).

2^1260551 is an apocalyptic number.

1260551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260551 is an equidigital number, since it uses as much as digits as its factorization.

1260551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1260551 is about 1122.7426241129. The cubic root of 1260551 is about 108.0239715879.

The spelling of 1260551 in words is "one million, two hundred sixty thousand, five hundred fifty-one".