1120731451 has 16 divisors (see below), whose sum is σ = 1296059328. Its totient is φ = 949248000.

The previous prime is 1120731431. The next prime is 1120731457. The reversal of 1120731451 is 1541370211.

It is a cyclic number.

It is not a de Polignac number, because 1120731451 - 2¹⁷ = 1120600379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120731457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451951 + ... + 454423.

It is an arithmetic number, because the mean of its divisors is an integer number (81003708).

Almost surely, 2^1120731451 is an apocalyptic number.

1120731451 is a deficient number, since it is larger than the sum of its proper divisors (175327877).

1120731451 is a wasteful number, since it uses less digits than its factorization.

1120731451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1120731451 is about 33477.3274172237. The cubic root of 1120731451 is about 1038.7248458756.

The spelling of 1120731451 in words is "one billion, one hundred twenty million, seven hundred thirty-one thousand, four hundred fifty-one".