2649154 has 4 divisors (see below), whose sum is σ = 3973734. Its totient is φ = 1324576.

The previous prime is 2649139. The next prime is 2649173. The reversal of 2649154 is 4519462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4519462 = 2 ⋅2259731.

It can be written as a sum of positive squares in only one way, i.e., 2647129 + 2025 = 1627^2 + 45^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662287 + ... + 662290.

2^2649154 is an apocalyptic number.

2649154 is a deficient number, since it is larger than the sum of its proper divisors (1324580).

2649154 is a wasteful number, since it uses less digits than its factorization.

2649154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324579.

The product of its digits is 8640, while the sum is 31.

The square root of 2649154 is about 1627.6221920335. The cubic root of 2649154 is about 138.3680227837.

The spelling of 2649154 in words is "two million, six hundred forty-nine thousand, one hundred fifty-four".