1454003721 has 12 divisors (see below), whose sum is σ = 2105955072. Its totient is φ = 966692376.

The previous prime is 1454003717. The next prime is 1454003731. The reversal of 1454003721 is 1273004541.

It is not a de Polignac number, because 1454003721 - 2² = 1454003717 is a prime.

It is a super-2 number, since 2×1454003721² = 4228253641363691682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1454003731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216801 + ... + 223406.

It is an arithmetic number, because the mean of its divisors is an integer number (175496256).

Almost surely, 2^1454003721 is an apocalyptic number.

It is an amenable number.

1454003721 is a deficient number, since it is larger than the sum of its proper divisors (651951351).

1454003721 is a wasteful number, since it uses less digits than its factorization.

1454003721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440580 (or 440577 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1454003721 is about 38131.4007217149. The cubic root of 1454003721 is about 1132.8919895051.

The spelling of 1454003721 in words is "one billion, four hundred fifty-four million, three thousand, seven hundred twenty-one".