1431536061 has 4 divisors (see below), whose sum is σ = 1908714752. Its totient is φ = 954357372.

The previous prime is 1431536027. The next prime is 1431536063. The reversal of 1431536061 is 1606351341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1431536061 - 2⁶ = 1431535997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431536063) 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, 238589341 + ... + 238589346.

It is an arithmetic number, because the mean of its divisors is an integer number (477178688).

Almost surely, 2^1431536061 is an apocalyptic number.

It is an amenable number.

1431536061 is a deficient number, since it is larger than the sum of its proper divisors (477178691).

1431536061 is an equidigital number, since it uses as much as digits as its factorization.

1431536061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477178690.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1431536061 is about 37835.6453757564. The cubic root of 1431536061 is about 1127.0264213687.

The spelling of 1431536061 in words is "one billion, four hundred thirty-one million, five hundred thirty-six thousand, sixty-one".