148451977 has 2 divisors, whose sum is σ = 148451978. Its totient is φ = 148451976.

The previous prime is 148451969. The next prime is 148452011. The reversal of 148451977 is 779154841.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147598201 + 853776 = 12149^2 + 924^2 .

It is a cyclic number.

It is not a de Polignac number, because 148451977 - 2³ = 148451969 is a prime.

It is not a weakly prime, because it can be changed into another prime (148451077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74225988 + 74225989.

It is an arithmetic number, because the mean of its divisors is an integer number (74225989).

Almost surely, 2^148451977 is an apocalyptic number.

It is an amenable number.

148451977 is a deficient number, since it is larger than the sum of its proper divisors (1).

148451977 is an equidigital number, since it uses as much as digits as its factorization.

148451977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 46.

The square root of 148451977 is about 12184.0870400699. The cubic root of 148451977 is about 529.4951606703.

The spelling of 148451977 in words is "one hundred forty-eight million, four hundred fifty-one thousand, nine hundred seventy-seven".