1146551 has 6 divisors (see below), whose sum is σ = 1333800. Its totient is φ = 982716.

The previous prime is 1146539. The next prime is 1146559. The reversal of 1146551 is 1556411.

It is not a de Polignac number, because 1146551 - 2⁶ = 1146487 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146559) 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, 11651 + ... + 11748.

It is an arithmetic number, because the mean of its divisors is an integer number (222300).

2^1146551 is an apocalyptic number.

1146551 is a deficient number, since it is larger than the sum of its proper divisors (187249).

1146551 is an equidigital number, since it uses as much as digits as its factorization.

1146551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23413 (or 23406 counting only the distinct ones).

The product of its digits is 600, while the sum is 23.

The square root of 1146551 is about 1070.7712173943. The cubic root of 1146551 is about 104.6641118466.

The spelling of 1146551 in words is "one million, one hundred forty-six thousand, five hundred fifty-one".