148740212691 has 12 divisors (see below), whose sum is σ = 245539398832. Its totient is φ = 84994407216.

The previous prime is 148740212669. The next prime is 148740212741. The reversal of 148740212691 is 196212047841.

148740212691 is a `hidden beast` number, since 1 + 487 + 40 + 2 + 126 + 9 + 1 = 666.

148740212691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 148740212691 - 2¹⁵ = 148740179923 is a prime.

It is a super-2 number, since 2×148740212691² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (148740214691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1180477816 + ... + 1180477941.

Almost surely, 2^148740212691 is an apocalyptic number.

148740212691 is a deficient number, since it is larger than the sum of its proper divisors (96799186141).

148740212691 is a wasteful number, since it uses less digits than its factorization.

148740212691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360955770 (or 2360955767 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 148740212691 in words is "one hundred forty-eight billion, seven hundred forty million, two hundred twelve thousand, six hundred ninety-one".