2157010274 has 4 divisors (see below), whose sum is σ = 3235515414. Its totient is φ = 1078505136.

The previous prime is 2157010253. The next prime is 2157010279. The reversal of 2157010274 is 4720107512.

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

It can be written as a sum of positive squares in only one way, i.e., 1190733049 + 966277225 = 34507^2 + 31085^2 .

It is not an unprimeable number, because it can be changed into a prime (2157010279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539252567 + ... + 539252570.

Almost surely, 2^2157010274 is an apocalyptic number.

2157010274 is a deficient number, since it is larger than the sum of its proper divisors (1078505140).

2157010274 is a wasteful number, since it uses less digits than its factorization.

2157010274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078505139.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 2157010274 is about 46443.6246862796. The cubic root of 2157010274 is about 1292.0641340649.

Adding to 2157010274 its reverse (4720107512), we get a palindrome (6877117786).

The spelling of 2157010274 in words is "two billion, one hundred fifty-seven million, ten thousand, two hundred seventy-four".