148661899 has 2 divisors, whose sum is σ = 148661900. Its totient is φ = 148661898.

The previous prime is 148661869. The next prime is 148661911. The reversal of 148661899 is 998166841.

148661899 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 148661899 - 2¹⁹ = 148137611 is a prime.

It is not a weakly prime, because it can be changed into another prime (148661809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74330949 + 74330950.

It is an arithmetic number, because the mean of its divisors is an integer number (74330950).

Almost surely, 2^148661899 is an apocalyptic number.

148661899 is a deficient number, since it is larger than the sum of its proper divisors (1).

148661899 is an equidigital number, since it uses as much as digits as its factorization.

148661899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 52.

The square root of 148661899 is about 12192.6985938307. The cubic root of 148661899 is about 529.7446248041.

The spelling of 148661899 in words is "one hundred forty-eight million, six hundred sixty-one thousand, eight hundred ninety-nine".