1310551 has 6 divisors (see below), whose sum is σ = 1440656. Its totient is φ = 1191300.

The previous prime is 1310549. The next prime is 1310579. The reversal of 1310551 is 1550131.

It is not a de Polignac number, because 1310551 - 2¹ = 1310549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310591) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5295 + ... + 5536.

2^1310551 is an apocalyptic number.

1310551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1310551 is a deficient number, since it is larger than the sum of its proper divisors (130105).

1310551 is a wasteful number, since it uses less digits than its factorization.

1310551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10853 (or 10842 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 1310551 is about 1144.7929943881. The cubic root of 1310551 is about 109.4337568380.

Adding to 1310551 its reverse (1550131), we get a palindrome (2860682).

The spelling of 1310551 in words is "one million, three hundred ten thousand, five hundred fifty-one".