2148920907 has 8 divisors (see below), whose sum is σ = 3274546176. Its totient is φ = 1227954792.

The previous prime is 2148920857. The next prime is 2148920927. The reversal of 2148920907 is 7090298412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2148920907 - 2⁷ = 2148920779 is a prime.

It is a super-2 number, since 2×2148920907² = 9235722129083405298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2148920927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51164763 + ... + 51164804.

It is an arithmetic number, because the mean of its divisors is an integer number (409318272).

Almost surely, 2^2148920907 is an apocalyptic number.

2148920907 is a deficient number, since it is larger than the sum of its proper divisors (1125625269).

2148920907 is a wasteful number, since it uses less digits than its factorization.

2148920907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102329577.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 2148920907 is about 46356.4548579807. The cubic root of 2148920907 is about 1290.4469150379.

The spelling of 2148920907 in words is "two billion, one hundred forty-eight million, nine hundred twenty thousand, nine hundred seven".