1532149427 has 4 divisors (see below), whose sum is σ = 1532719800. Its totient is φ = 1531579056.

The previous prime is 1532149403. The next prime is 1532149433. The reversal of 1532149427 is 7249412351.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1532149427 - 2²² = 1527955123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1532149127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281138 + ... + 286535.

It is an arithmetic number, because the mean of its divisors is an integer number (383179950).

Almost surely, 2^1532149427 is an apocalyptic number.

1532149427 is a deficient number, since it is larger than the sum of its proper divisors (570373).

1532149427 is an equidigital number, since it uses as much as digits as its factorization.

1532149427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570372.

The product of its digits is 60480, while the sum is 38.

The square root of 1532149427 is about 39142.6803757740. The cubic root of 1532149427 is about 1152.8347023610.

The spelling of 1532149427 in words is "one billion, five hundred thirty-two million, one hundred forty-nine thousand, four hundred twenty-seven".