1453066021 has 16 divisors (see below), whose sum is σ = 1670011200. Its totient is φ = 1250380800.

The previous prime is 1453066001. The next prime is 1453066057. The reversal of 1453066021 is 1206603541.

It is a cyclic number.

It is not a de Polignac number, because 1453066021 - 2⁵ = 1453065989 is a prime.

It is a super-2 number, since 2×1453066021² = 4222801722769544882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453066001) 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, 336645 + ... + 340933.

It is an arithmetic number, because the mean of its divisors is an integer number (104375700).

Almost surely, 2^1453066021 is an apocalyptic number.

1453066021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1453066021 is a deficient number, since it is larger than the sum of its proper divisors (216945179).

1453066021 is a wasteful number, since it uses less digits than its factorization.

1453066021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1453066021 is about 38119.1030980531. The cubic root of 1453066021 is about 1132.6483997421.

Adding to 1453066021 its reverse (1206603541), we get a palindrome (2659669562).

It can be divided in two parts, 14 and 53066021, that added together give a palindrome (53066035).

The spelling of 1453066021 in words is "one billion, four hundred fifty-three million, sixty-six thousand, twenty-one".