1953145 has 8 divisors (see below), whose sum is σ = 2351304. Its totient is φ = 1557504.

The previous prime is 1953109. The next prime is 1953151. The reversal of 1953145 is 5413591.

It can be written as a sum of positive squares in 4 ways, for example, as 1430416 + 522729 = 1196^2 + 723^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1953145 - 2¹¹ = 1951097 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2547 + ... + 3223.

It is an arithmetic number, because the mean of its divisors is an integer number (293913).

2^1953145 is an apocalyptic number.

It is an amenable number.

1953145 is a deficient number, since it is larger than the sum of its proper divisors (398159).

1953145 is an equidigital number, since it uses as much as digits as its factorization.

1953145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259.

The product of its digits is 2700, while the sum is 28.

The square root of 1953145 is about 1397.5496413366. The cubic root of 1953145 is about 125.0004266652. Note that the first 3 decimals are identical.

The spelling of 1953145 in words is "one million, nine hundred fifty-three thousand, one hundred forty-five".