1654020453 has 16 divisors (see below), whose sum is σ = 2234494080. Its totient is φ = 1088188224.

The previous prime is 1654020439. The next prime is 1654020493. The reversal of 1654020453 is 3540204561.

It is not a de Polignac number, because 1654020453 - 2⁸ = 1654020197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1654020453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1654020493) 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, 81403 + ... + 99671.

It is an arithmetic number, because the mean of its divisors is an integer number (139655880).

Almost surely, 2^1654020453 is an apocalyptic number.

It is an amenable number.

1654020453 is a deficient number, since it is larger than the sum of its proper divisors (580473627).

1654020453 is a wasteful number, since it uses less digits than its factorization.

1654020453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18668.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1654020453 is about 40669.6502689659. The cubic root of 1654020453 is about 1182.6247359504.

The spelling of 1654020453 in words is "one billion, six hundred fifty-four million, twenty thousand, four hundred fifty-three".