1452729851 has 4 divisors (see below), whose sum is σ = 1452806304. Its totient is φ = 1452653400.

The previous prime is 1452729821. The next prime is 1452729869. The reversal of 1452729851 is 1589272541.

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: 1589272541 = 97 ⋅16384253.

It is a cyclic number.

It is not a de Polignac number, because 1452729851 - 2¹⁴ = 1452713467 is a prime.

It is a super-2 number, since 2×1452729851² = 4220848039972964402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1452729821) 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, 14741 + ... + 55881.

It is an arithmetic number, because the mean of its divisors is an integer number (363201576).

Almost surely, 2^1452729851 is an apocalyptic number.

1452729851 is a deficient number, since it is larger than the sum of its proper divisors (76453).

1452729851 is an equidigital number, since it uses as much as digits as its factorization.

1452729851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76452.

The product of its digits is 201600, while the sum is 44.

The square root of 1452729851 is about 38114.6933740782. The cubic root of 1452729851 is about 1132.5610461110.

The spelling of 1452729851 in words is "one billion, four hundred fifty-two million, seven hundred twenty-nine thousand, eight hundred fifty-one".