148778264 has 8 divisors (see below), whose sum is σ = 278959260. Its totient is φ = 74389128.

The previous prime is 148778263. The next prime is 148778293. The reversal of 148778264 is 462877841.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148778263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9298634 + ... + 9298649.

Almost surely, 2^148778264 is an apocalyptic number.

It is an amenable number.

148778264 is a deficient number, since it is larger than the sum of its proper divisors (130180996).

148778264 is a wasteful number, since it uses less digits than its factorization.

148778264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18597289 (or 18597285 counting only the distinct ones).

The product of its digits is 602112, while the sum is 47.

The square root of 148778264 is about 12197.4695736452. The cubic root of 148778264 is about 529.8828078374.

The spelling of 148778264 in words is "one hundred forty-eight million, seven hundred seventy-eight thousand, two hundred sixty-four".