1445561051 has 16 divisors (see below), whose sum is σ = 1688519520. Its totient is φ = 1222932480.

The previous prime is 1445561023. The next prime is 1445561069. The reversal of 1445561051 is 1501655441.

It is a de Polignac number, because none of the positive numbers 2^k-1445561051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1445560999 and 1445561017.

It is not an unprimeable number, because it can be changed into a prime (1445561071) 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, 26786 + ... + 60071.

It is an arithmetic number, because the mean of its divisors is an integer number (105532470).

Almost surely, 2^1445561051 is an apocalyptic number.

1445561051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1445561051 is a deficient number, since it is larger than the sum of its proper divisors (242958469).

1445561051 is a wasteful number, since it uses less digits than its factorization.

1445561051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86974.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 1445561051 is about 38020.5345964520. The cubic root of 1445561051 is about 1130.6950200003.

The spelling of 1445561051 in words is "one billion, four hundred forty-five million, five hundred sixty-one thousand, fifty-one".