2101657151 has 4 divisors (see below), whose sum is σ = 2292716904. Its totient is φ = 1910597400.

The previous prime is 2101657141. The next prime is 2101657153. The reversal of 2101657151 is 1517561012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2101657151 - 2²² = 2097462847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101657153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95529860 + ... + 95529881.

It is an arithmetic number, because the mean of its divisors is an integer number (573179226).

Almost surely, 2^2101657151 is an apocalyptic number.

2101657151 is a deficient number, since it is larger than the sum of its proper divisors (191059753).

2101657151 is a wasteful number, since it uses less digits than its factorization.

2101657151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191059752.

The product of its (nonzero) digits is 2100, while the sum is 29.

The square root of 2101657151 is about 45843.8343836988. The cubic root of 2101657151 is about 1280.9159197634.

The spelling of 2101657151 in words is "two billion, one hundred one million, six hundred fifty-seven thousand, one hundred fifty-one".