2531654 has 4 divisors (see below), whose sum is σ = 3797484. Its totient is φ = 1265826.

The previous prime is 2531653. The next prime is 2531663. The reversal of 2531654 is 4561352.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632912 + ... + 632915.

It is an arithmetic number, because the mean of its divisors is an integer number (949371).

2^2531654 is an apocalyptic number.

2531654 is a deficient number, since it is larger than the sum of its proper divisors (1265830).

2531654 is a wasteful number, since it uses less digits than its factorization.

2531654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265829.

The product of its digits is 3600, while the sum is 26.

The square root of 2531654 is about 1591.1172175550. The cubic root of 2531654 is about 136.2912946122.

The spelling of 2531654 in words is "two million, five hundred thirty-one thousand, six hundred fifty-four".