149487431527 has 4 divisors (see below), whose sum is σ = 170842778896. Its totient is φ = 128132084160.

The previous prime is 149487431497. The next prime is 149487431537. The reversal of 149487431527 is 725134784941.

It is a happy number.

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 149487431527 - 2¹⁵ = 149487398759 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 (149487431537) 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, 10677673674 + ... + 10677673687.

It is an arithmetic number, because the mean of its divisors is an integer number (42710694724).

Almost surely, 2^149487431527 is an apocalyptic number.

149487431527 is a deficient number, since it is larger than the sum of its proper divisors (21355347369).

149487431527 is an equidigital number, since it uses as much as digits as its factorization.

149487431527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21355347368.

The product of its digits is 6773760, while the sum is 55.

The spelling of 149487431527 in words is "one hundred forty-nine billion, four hundred eighty-seven million, four hundred thirty-one thousand, five hundred twenty-seven".