148214977 has 4 divisors (see below), whose sum is σ = 151011540. Its totient is φ = 145418416.

The previous prime is 148214971. The next prime is 148214987. The reversal of 148214977 is 779412841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 779412841 = 157 ⋅4964413.

It can be written as a sum of positive squares in 2 ways, for example, as 64016001 + 84198976 = 8001^2 + 9176^2 .

It is a cyclic number.

It is not a de Polignac number, because 148214977 - 2¹¹ = 148212929 is a prime.

It is a super-2 number, since 2×148214977² = 43935358814221058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148214971) 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, 1398202 + ... + 1398307.

It is an arithmetic number, because the mean of its divisors is an integer number (37752885).

Almost surely, 2^148214977 is an apocalyptic number.

It is an amenable number.

148214977 is a deficient number, since it is larger than the sum of its proper divisors (2796563).

148214977 is an equidigital number, since it uses as much as digits as its factorization.

148214977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796562.

The product of its digits is 112896, while the sum is 43.

The square root of 148214977 is about 12174.3573547025. The cubic root of 148214977 is about 529.2132351712.

The spelling of 148214977 in words is "one hundred forty-eight million, two hundred fourteen thousand, nine hundred seventy-seven".