1451120891 has 8 divisors (see below), whose sum is σ = 1583334000. Its totient is φ = 1318956640.

The previous prime is 1451120843. The next prime is 1451120893. The reversal of 1451120891 is 1980211541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1451120891 - 2¹⁴ = 1451104507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1451120893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80585 + ... + 96933.

It is an arithmetic number, because the mean of its divisors is an integer number (197916750).

Almost surely, 2^1451120891 is an apocalyptic number.

1451120891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1451120891 is a deficient number, since it is larger than the sum of its proper divisors (132213109).

1451120891 is a wasteful number, since it uses less digits than its factorization.

1451120891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24429.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 1451120891 is about 38093.5807059405. The cubic root of 1451120891 is about 1132.1427718366.

The spelling of 1451120891 in words is "one billion, four hundred fifty-one million, one hundred twenty thousand, eight hundred ninety-one".