2351138 has 4 divisors (see below), whose sum is σ = 3526710. Its totient is φ = 1175568.

The previous prime is 2351137. The next prime is 2351147. The reversal of 2351138 is 8311532.

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., 2271049 + 80089 = 1507^2 + 283^2 .

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2351137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 587783 + ... + 587786.

2^2351138 is an apocalyptic number.

2351138 is a deficient number, since it is larger than the sum of its proper divisors (1175572).

2351138 is a wasteful number, since it uses less digits than its factorization.

2351138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175571.

The product of its digits is 720, while the sum is 23.

The square root of 2351138 is about 1533.3421014242. The cubic root of 2351138 is about 132.9717466885.

The spelling of 2351138 in words is "two million, three hundred fifty-one thousand, one hundred thirty-eight".