1461451020 has 48 divisors (see below), whose sum is σ = 4143874560. Its totient is φ = 384785856.

The previous prime is 1461451009. The next prime is 1461451037. The reversal of 1461451020 is 201541641.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149422 + ... + 158901.

It is an arithmetic number, because the mean of its divisors is an integer number (86330720).

Almost surely, 2^1461451020 is an apocalyptic number.

1461451020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1461451020 is an abundant number, since it is smaller than the sum of its proper divisors (2682423540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1461451020 is a wasteful number, since it uses less digits than its factorization.

1461451020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308414 (or 308412 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1461451020 is about 38228.9290982627. The cubic root of 1461451020 is about 1134.8228927920.

Adding to 1461451020 its reverse (201541641), we get a palindrome (1662992661).

The spelling of 1461451020 in words is "one billion, four hundred sixty-one million, four hundred fifty-one thousand, twenty".