1129951 has 2 divisors, whose sum is σ = 1129952. Its totient is φ = 1129950.

The previous prime is 1129897. The next prime is 1129957. The reversal of 1129951 is 1599211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1129951 - 2⁹ = 1129439 is a prime.

1129951 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1129957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564975 + 564976.

It is an arithmetic number, because the mean of its divisors is an integer number (564976).

2^1129951 is an apocalyptic number.

1129951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129951 is an equidigital number, since it uses as much as digits as its factorization.

1129951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 810, while the sum is 28.

The square root of 1129951 is about 1062.9915333623. The cubic root of 1129951 is about 104.1565381796.

It can be divided in two parts, 1129 and 951, that added together give a triangular number (2080 = T₆₄).

The spelling of 1129951 in words is "one million, one hundred twenty-nine thousand, nine hundred fifty-one".