1653372001 has 4 divisors (see below), whose sum is σ = 1740391600. Its totient is φ = 1566352404.

The previous prime is 1653371989. The next prime is 1653372013. The reversal of 1653372001 is 1002733561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1653371989) and next prime (1653372013).

It is a cyclic number.

It is not a de Polignac number, because 1653372001 - 2²⁵ = 1619817569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1653372031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43509771 + ... + 43509808.

It is an arithmetic number, because the mean of its divisors is an integer number (435097900).

Almost surely, 2^1653372001 is an apocalyptic number.

It is an amenable number.

1653372001 is a deficient number, since it is larger than the sum of its proper divisors (87019599).

1653372001 is an equidigital number, since it uses as much as digits as its factorization.

1653372001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87019598.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 1653372001 is about 40661.6773018527. The cubic root of 1653372001 is about 1182.4701680081.

The spelling of 1653372001 in words is "one billion, six hundred fifty-three million, three hundred seventy-two thousand, one".