2113154 has 4 divisors (see below), whose sum is σ = 3169734. Its totient is φ = 1056576.

The previous prime is 2113147. The next prime is 2113159. The reversal of 2113154 is 4513112.

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., 1974025 + 139129 = 1405^2 + 373^2 .

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2113159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528287 + ... + 528290.

2^2113154 is an apocalyptic number.

2113154 is a deficient number, since it is larger than the sum of its proper divisors (1056580).

2113154 is a wasteful number, since it uses less digits than its factorization.

2113154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056579.

The product of its digits is 120, while the sum is 17.

The square root of 2113154 is about 1453.6691508043. The cubic root of 2113154 is about 128.3247369666.

Adding to 2113154 its reverse (4513112), we get a palindrome (6626266).

The spelling of 2113154 in words is "two million, one hundred thirteen thousand, one hundred fifty-four".