1021354 has 4 divisors (see below), whose sum is σ = 1532034. Its totient is φ = 510676.

The previous prime is 1021333. The next prime is 1021367. The reversal of 1021354 is 4531201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4531201 = 239 ⋅18959.

It can be written as a sum of positive squares in only one way, i.e., 990025 + 31329 = 995^2 + 177^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255337 + ... + 255340.

2^1021354 is an apocalyptic number.

1021354 is a deficient number, since it is larger than the sum of its proper divisors (510680).

1021354 is an equidigital number, since it uses as much as digits as its factorization.

1021354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510679.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1021354 is about 1010.6206014128. The cubic root of 1021354 is about 100.7067926718.

Adding to 1021354 its reverse (4531201), we get a palindrome (5552555).

The spelling of 1021354 in words is "one million, twenty-one thousand, three hundred fifty-four".