189148707 has 12 divisors (see below), whose sum is σ = 298052664. Its totient is φ = 114635520.

The previous prime is 189148693. The next prime is 189148723. The reversal of 189148707 is 707841981.

It is not a de Polignac number, because 189148707 - 2⁴ = 189148691 is a prime.

It is a super-3 number, since 3×189148707³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (189148747) 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 in 11 ways as a sum of consecutive naturals, for example, 955198 + ... + 955395.

It is an arithmetic number, because the mean of its divisors is an integer number (24837722).

Almost surely, 2^189148707 is an apocalyptic number.

189148707 is a deficient number, since it is larger than the sum of its proper divisors (108903957).

189148707 is a wasteful number, since it uses less digits than its factorization.

189148707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910610 (or 1910607 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 189148707 is about 13753.1344427370. The cubic root of 189148707 is about 574.0298266217.

The spelling of 189148707 in words is "one hundred eighty-nine million, one hundred forty-eight thousand, seven hundred seven".