148711549 has 4 divisors (see below), whose sum is σ = 169956064. Its totient is φ = 127467036.

The previous prime is 148711543. The next prime is 148711561. The reversal of 148711549 is 945117841.

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 a cyclic number.

It is not a de Polignac number, because 148711549 - 2⁵ = 148711517 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 (148711543) 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, 10622247 + ... + 10622260.

It is an arithmetic number, because the mean of its divisors is an integer number (42489016).

Almost surely, 2^148711549 is an apocalyptic number.

It is an amenable number.

148711549 is a deficient number, since it is larger than the sum of its proper divisors (21244515).

148711549 is an equidigital number, since it uses as much as digits as its factorization.

148711549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21244514.

The product of its digits is 40320, while the sum is 40.

The square root of 148711549 is about 12194.7344784542. The cubic root of 148711549 is about 529.8035928232.

The spelling of 148711549 in words is "one hundred forty-eight million, seven hundred eleven thousand, five hundred forty-nine".