148761477 has 6 divisors (see below), whose sum is σ = 214877702. Its totient is φ = 99174312.

The previous prime is 148761463. The next prime is 148761511. The reversal of 148761477 is 774167841.

It can be written as a sum of positive squares in only one way, i.e., 116510436 + 32251041 = 10794^2 + 5679^2 .

It is not a de Polignac number, because 148761477 - 2¹⁸ = 148499333 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 (148761427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8264518 + ... + 8264535.

Almost surely, 2^148761477 is an apocalyptic number.

It is an amenable number.

148761477 is a deficient number, since it is larger than the sum of its proper divisors (66116225).

148761477 is a wasteful number, since it uses less digits than its factorization.

148761477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16529059 (or 16529056 counting only the distinct ones).

The product of its digits is 263424, while the sum is 45.

The square root of 148761477 is about 12196.7814197025. The cubic root of 148761477 is about 529.8628777817.

The spelling of 148761477 in words is "one hundred forty-eight million, seven hundred sixty-one thousand, four hundred seventy-seven".