1011953 has 4 divisors (see below), whose sum is σ = 1014900. Its totient is φ = 1009008.

The previous prime is 1011947. The next prime is 1011961. The reversal of 1011953 is 3591101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 824464 + 187489 = 908^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011953 - 2⁴ = 1011937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1011943) 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, 878 + ... + 1671.

It is an arithmetic number, because the mean of its divisors is an integer number (253725).

2^1011953 is an apocalyptic number.

It is an amenable number.

1011953 is a deficient number, since it is larger than the sum of its proper divisors (2947).

1011953 is an equidigital number, since it uses as much as digits as its factorization.

1011953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 1011953 is about 1005.9587466691. The cubic root of 1011953 is about 100.3968563007.

The spelling of 1011953 in words is "one million, eleven thousand, nine hundred fifty-three".