1480221901 has 4 divisors (see below), whose sum is σ = 1511716032. Its totient is φ = 1448727772.

The previous prime is 1480221877. The next prime is 1480221907. The reversal of 1480221901 is 1091220841.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1091220841 = 223 ⋅4893367.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1480221901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1480221901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1480221907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15746995 + ... + 15747088.

It is an arithmetic number, because the mean of its divisors is an integer number (377929008).

Almost surely, 2^1480221901 is an apocalyptic number.

It is an amenable number.

1480221901 is a deficient number, since it is larger than the sum of its proper divisors (31494131).

1480221901 is an equidigital number, since it uses as much as digits as its factorization.

1480221901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31494130.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1480221901 is about 38473.6520361663. The cubic root of 1480221901 is about 1139.6607949968.

The spelling of 1480221901 in words is "one billion, four hundred eighty million, two hundred twenty-one thousand, nine hundred one".