1153145 has 16 divisors (see below), whose sum is σ = 1617408. Its totient is φ = 772800.

The previous prime is 1153123. The next prime is 1153147. The reversal of 1153145 is 5413511.

1153145 = T₂₃₉ + T₂₄₀ + ... + T₂₇₃.

It is not a de Polignac number, because 1153145 - 2¹⁰ = 1152121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1295 + ... + 1995.

It is an arithmetic number, because the mean of its divisors is an integer number (101088).

2^1153145 is an apocalyptic number.

It is an amenable number.

1153145 is a deficient number, since it is larger than the sum of its proper divisors (464263).

1153145 is an equidigital number, since it uses as much as digits as its factorization.

1153145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760.

The product of its digits is 300, while the sum is 20.

The square root of 1153145 is about 1073.8458921093. The cubic root of 1153145 is about 104.8643751581.

Adding to 1153145 its reverse (5413511), we get a palindrome (6566656).

It can be divided in two parts, 115 and 3145, that multiplied together give a triangular number (361675 = T₈₅₀).

The spelling of 1153145 in words is "one million, one hundred fifty-three thousand, one hundred forty-five".