2135020654 has 16 divisors (see below), whose sum is σ = 3560135040. Its totient is φ = 953606880.

The previous prime is 2135020639. The next prime is 2135020661. The reversal of 2135020654 is 4560205312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1323649 + ... + 1325260.

It is an arithmetic number, because the mean of its divisors is an integer number (222508440).

Almost surely, 2^2135020654 is an apocalyptic number.

2135020654 is a deficient number, since it is larger than the sum of its proper divisors (1425114386).

2135020654 is a wasteful number, since it uses less digits than its factorization.

2135020654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648955.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2135020654 is about 46206.2837068726. The cubic root of 2135020654 is about 1287.6584838244.

Adding to 2135020654 its reverse (4560205312), we get a palindrome (6695225966).

The spelling of 2135020654 in words is "two billion, one hundred thirty-five million, twenty thousand, six hundred fifty-four".