148729971 has 24 divisors (see below), whose sum is σ = 221684736. Its totient is φ = 88564320.

The previous prime is 148729963. The next prime is 148730027. The reversal of 148729971 is 179927841.

It is not a de Polignac number, because 148729971 - 2³ = 148729963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148729971.

It is not an unprimeable number, because it can be changed into a prime (148729901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10986 + ... + 20448.

It is an arithmetic number, because the mean of its divisors is an integer number (9236864).

Almost surely, 2^148729971 is an apocalyptic number.

148729971 is a deficient number, since it is larger than the sum of its proper divisors (72954765).

148729971 is a wasteful number, since it uses less digits than its factorization.

148729971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9523 (or 9510 counting only the distinct ones).

The product of its digits is 254016, while the sum is 48.

The square root of 148729971 is about 12195.4897810625. The cubic root of 148729971 is about 529.8254688170.

The spelling of 148729971 in words is "one hundred forty-eight million, seven hundred twenty-nine thousand, nine hundred seventy-one".