32148491 has 4 divisors (see below), whose sum is σ = 32509800. Its totient is φ = 31787184.

The previous prime is 32148481. The next prime is 32148499. The reversal of 32148491 is 19484123.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32148491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32148499) 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, 180521 + ... + 180698.

It is an arithmetic number, because the mean of its divisors is an integer number (8127450).

Almost surely, 2^32148491 is an apocalyptic number.

32148491 is a deficient number, since it is larger than the sum of its proper divisors (361309).

32148491 is an equidigital number, since it uses as much as digits as its factorization.

32148491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361308.

The product of its digits is 6912, while the sum is 32.

The square root of 32148491 is about 5669.9639328659. The cubic root of 32148491 is about 317.9705252008.

The spelling of 32148491 in words is "thirty-two million, one hundred forty-eight thousand, four hundred ninety-one".