1463045721 has 16 divisors (see below), whose sum is σ = 2069224704. Its totient is φ = 916323584.

The previous prime is 1463045699. The next prime is 1463045723. The reversal of 1463045721 is 1275403641.

It is a cyclic number.

It is not a de Polignac number, because 1463045721 - 2⁹ = 1463045209 is a prime.

It is a super-3 number, since 3×1463045721³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1463045723) 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, 2656 + ... + 54158.

It is an arithmetic number, because the mean of its divisors is an integer number (129326544).

Almost surely, 2^1463045721 is an apocalyptic number.

It is an amenable number.

1463045721 is a deficient number, since it is larger than the sum of its proper divisors (606178983).

1463045721 is a wasteful number, since it uses less digits than its factorization.

1463045721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52080.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 1463045721 is about 38249.7806660378. The cubic root of 1463045721 is about 1135.2355067720.

The spelling of 1463045721 in words is "one billion, four hundred sixty-three million, forty-five thousand, seven hundred twenty-one".