148776643 has 2 divisors, whose sum is σ = 148776644. Its totient is φ = 148776642.

The previous prime is 148776629. The next prime is 148776653. The reversal of 148776643 is 346677841.

148776643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 148776643 - 2⁵ = 148776611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 148776593 and 148776602.

It is not a weakly prime, because it can be changed into another prime (148776653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74388321 + 74388322.

It is an arithmetic number, because the mean of its divisors is an integer number (74388322).

Almost surely, 2^148776643 is an apocalyptic number.

148776643 is a deficient number, since it is larger than the sum of its proper divisors (1).

148776643 is an equidigital number, since it uses as much as digits as its factorization.

148776643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 46.

The square root of 148776643 is about 12197.4031252558. The cubic root of 148776643 is about 529.8808834004.

The spelling of 148776643 in words is "one hundred forty-eight million, seven hundred seventy-six thousand, six hundred forty-three".