2149620057 has 24 divisors (see below), whose sum is σ = 3406954824. Its totient is φ = 1297880064.

The previous prime is 2149620047. The next prime is 2149620091. The reversal of 2149620057 is 7500269412.

2149620057 is a `hidden beast` number, since 21 + 4 + 9 + 620 + 0 + 5 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 346853376 + 1802766681 = 18624^2 + 42459^2 .

It is not a de Polignac number, because 2149620057 - 2¹⁰ = 2149619033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2149620017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167128 + ... + 179529.

It is an arithmetic number, because the mean of its divisors is an integer number (141956451).

Almost surely, 2^2149620057 is an apocalyptic number.

It is an amenable number.

2149620057 is a deficient number, since it is larger than the sum of its proper divisors (1257334767).

2149620057 is a wasteful number, since it uses less digits than its factorization.

2149620057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346729 (or 346726 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 2149620057 is about 46363.9952657232. The cubic root of 2149620057 is about 1290.5868485475.

Adding to 2149620057 its reverse (7500269412), we get a palindrome (9649889469).

The spelling of 2149620057 in words is "two billion, one hundred forty-nine million, six hundred twenty thousand, fifty-seven".