1451205413 has 12 divisors (see below), whose sum is σ = 1688791212. Its totient is φ = 1243408320.

The previous prime is 1451205397. The next prime is 1451205473. The reversal of 1451205413 is 3145021541.

It can be written as a sum of positive squares in 2 ways, for example, as 768010369 + 683195044 = 27713^2 + 26138^2 .

It is not a de Polignac number, because 1451205413 - 2⁴ = 1451205397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451205473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188153 + ... + 195713.

It is an arithmetic number, because the mean of its divisors is an integer number (140732601).

Almost surely, 2^1451205413 is an apocalyptic number.

It is an amenable number.

1451205413 is a deficient number, since it is larger than the sum of its proper divisors (237585799).

1451205413 is an equidigital number, since it uses as much as digits as its factorization.

1451205413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11492 (or 11485 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1451205413 is about 38094.6900893025. The cubic root of 1451205413 is about 1132.1647523424.

Adding to 1451205413 its reverse (3145021541), we get a palindrome (4596226954).

The spelling of 1451205413 in words is "one billion, four hundred fifty-one million, two hundred five thousand, four hundred thirteen".