1141551 has 6 divisors (see below), whose sum is σ = 1648920. Its totient is φ = 761028.

The previous prime is 1141541. The next prime is 1141571. The reversal of 1141551 is 1551411.

It is a happy number.

1141551 is a `hidden beast` number, since 114 + 1 + 551 = 666.

It is not a de Polignac number, because 1141551 - 2⁷ = 1141423 is a prime.

1141551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141531) 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, 63411 + ... + 63428.

It is an arithmetic number, because the mean of its divisors is an integer number (274820).

2^1141551 is an apocalyptic number.

1141551 is a deficient number, since it is larger than the sum of its proper divisors (507369).

1141551 is a wasteful number, since it uses less digits than its factorization.

1141551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126845 (or 126842 counting only the distinct ones).

The product of its digits is 100, while the sum is 18.

The square root of 1141551 is about 1068.4339006228. The cubic root of 1141551 is about 104.5117467317.

Adding to 1141551 its reverse (1551411), we get a palindrome (2692962).

The spelling of 1141551 in words is "one million, one hundred forty-one thousand, five hundred fifty-one".