2131554440254 has 16 divisors (see below), whose sum is σ = 3259058594400. Its totient is φ = 1045301700960.

The previous prime is 2131554440237. The next prime is 2131554440263. The reversal of 2131554440254 is 4520444551312.

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, 24988594 + ... + 25073749.

It is an arithmetic number, because the mean of its divisors is an integer number (203691162150).

Almost surely, 2^{2131554440254} is an apocalyptic number.

2131554440254 is a deficient number, since it is larger than the sum of its proper divisors (1127504154146).

2131554440254 is a wasteful number, since it uses less digits than its factorization.

2131554440254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50062755.

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 2131554440254 its reverse (4520444551312), we get a palindrome (6651998991566).

The spelling of 2131554440254 in words is "two trillion, one hundred thirty-one billion, five hundred fifty-four million, four hundred forty thousand, two hundred fifty-four".