1453079981 has 16 divisors (see below), whose sum is σ = 1556755200. Its totient is φ = 1351496448.

The previous prime is 1453079977. The next prime is 1453080001. The reversal of 1453079981 is 1899703541.

It is a cyclic number.

It is not a de Polignac number, because 1453079981 - 2² = 1453079977 is a prime.

It is a super-2 number, since 2×1453079981² = 4222882862365920722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453072981) 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, 931280 + ... + 932838.

It is an arithmetic number, because the mean of its divisors is an integer number (97297200).

Almost surely, 2^1453079981 is an apocalyptic number.

It is an amenable number.

1453079981 is a deficient number, since it is larger than the sum of its proper divisors (103675219).

1453079981 is a wasteful number, since it uses less digits than its factorization.

1453079981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 1453079981 is about 38119.2862079027. The cubic root of 1453079981 is about 1132.6520269508.

The spelling of 1453079981 in words is "one billion, four hundred fifty-three million, seventy-nine thousand, nine hundred eighty-one".