1350551 has 2 divisors, whose sum is σ = 1350552. Its totient is φ = 1350550.

The previous prime is 1350541. The next prime is 1350553. The reversal of 1350551 is 1550531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1350551 - 2⁶ = 1350487 is a prime.

It is a Sophie Germain prime.

Together with 1350553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1350553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675275 + 675276.

It is an arithmetic number, because the mean of its divisors is an integer number (675276).

2^1350551 is an apocalyptic number.

1350551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1350551 is an equidigital number, since it uses as much as digits as its factorization.

1350551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 1350551 is about 1162.1320923200. The cubic root of 1350551 is about 110.5359792203.

Subtracting from 1350551 its sum of digits (20), we obtain a palindrome (1350531).

The spelling of 1350551 in words is "one million, three hundred fifty thousand, five hundred fifty-one".