1151959 has 4 divisors (see below), whose sum is σ = 1154440. Its totient is φ = 1149480.

The previous prime is 1151933. The next prime is 1151963. The reversal of 1151959 is 9591511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9591511 = 2251 ⋅4261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1151959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1151959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312 + ... + 1549.

It is an arithmetic number, because the mean of its divisors is an integer number (288610).

2^1151959 is an apocalyptic number.

1151959 is a deficient number, since it is larger than the sum of its proper divisors (2481).

1151959 is an equidigital number, since it uses as much as digits as its factorization.

1151959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480.

The product of its digits is 2025, while the sum is 31.

The square root of 1151959 is about 1073.2935292826. The cubic root of 1151959 is about 104.8284121147.

The spelling of 1151959 in words is "one million, one hundred fifty-one thousand, nine hundred fifty-nine".