1010021453 has 8 divisors (see below), whose sum is σ = 1181155008. Its totient is φ = 845599104.

The previous prime is 1010021443. The next prime is 1010021461. The reversal of 1010021453 is 3541200101.

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

It is not a de Polignac number, because 1010021453 - 2⁸ = 1010021197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010021423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1677476 + ... + 1678077.

It is an arithmetic number, because the mean of its divisors is an integer number (147644376).

Almost surely, 2^1010021453 is an apocalyptic number.

It is an amenable number.

1010021453 is a deficient number, since it is larger than the sum of its proper divisors (171133555).

1010021453 is an equidigital number, since it uses as much as digits as its factorization.

1010021453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355603.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1010021453 is about 31780.8346806688. The cubic root of 1010021453 is about 1003.3293872122.

Adding to 1010021453 its reverse (3541200101), we get a palindrome (4551221554).

The spelling of 1010021453 in words is "one billion, ten million, twenty-one thousand, four hundred fifty-three".