1465551001 has 4 divisors (see below), whose sum is σ = 1465629732. Its totient is φ = 1465472272.

The previous prime is 1465550987. The next prime is 1465551013. The reversal of 1465551001 is 1001555641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1001555641 = 6961 ⋅143881.

It can be written as a sum of positive squares in 2 ways, for example, as 870191001 + 595360000 = 29499^2 + 24400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1465551001 - 2⁵ = 1465550969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1465551401) 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, 5931 + ... + 54463.

It is an arithmetic number, because the mean of its divisors is an integer number (366407433).

Almost surely, 2^1465551001 is an apocalyptic number.

It is an amenable number.

1465551001 is a deficient number, since it is larger than the sum of its proper divisors (78731).

1465551001 is an equidigital number, since it uses as much as digits as its factorization.

1465551001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78730.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 1465551001 is about 38282.5156043852. The cubic root of 1465551001 is about 1135.8831194736.

It can be divided in two parts, 14655 and 51001, that added together give a palindrome (65656).

The spelling of 1465551001 in words is "one billion, four hundred sixty-five million, five hundred fifty-one thousand, one".