1451500261 has 16 divisors (see below), whose sum is σ = 1551757824. Its totient is φ = 1354733424.

The previous prime is 1451500249. The next prime is 1451500289. The reversal of 1451500261 is 1620051541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1451500261 - 2¹⁹ = 1450975973 is a prime.

It is a pancake number, because a pancake can be divided into 1451500261 parts by 53879 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451500361) 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, 160486 + ... + 169288.

It is an arithmetic number, because the mean of its divisors is an integer number (96984864).

Almost surely, 2^1451500261 is an apocalyptic number.

It is an amenable number.

1451500261 is a deficient number, since it is larger than the sum of its proper divisors (100257563).

1451500261 is a wasteful number, since it uses less digits than its factorization.

1451500261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9000.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1451500261 is about 38098.5598284240. The cubic root of 1451500261 is about 1132.2414228364.

The spelling of 1451500261 in words is "one billion, four hundred fifty-one million, five hundred thousand, two hundred sixty-one".