1451969801 has 4 divisors (see below), whose sum is σ = 1452094212. Its totient is φ = 1451845392.

The previous prime is 1451969789. The next prime is 1451969803. The reversal of 1451969801 is 1089691541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1263731401 + 188238400 = 35549^2 + 13720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1451969801 - 2¹⁸ = 1451707657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1451969803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42650 + ... + 68723.

It is an arithmetic number, because the mean of its divisors is an integer number (363023553).

Almost surely, 2^1451969801 is an apocalyptic number.

It is an amenable number.

1451969801 is a deficient number, since it is larger than the sum of its proper divisors (124411).

1451969801 is a wasteful number, since it uses less digits than its factorization.

1451969801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124410.

The product of its (nonzero) digits is 77760, while the sum is 44.

The square root of 1451969801 is about 38104.7215053463. The cubic root of 1451969801 is about 1132.3634977536.

The spelling of 1451969801 in words is "one billion, four hundred fifty-one million, nine hundred sixty-nine thousand, eight hundred one".