2251344140142 has 16 divisors (see below), whose sum is σ = 4532507409792. Its totient is φ = 745478191800.

The previous prime is 2251344140117. The next prime is 2251344140147. The reversal of 2251344140142 is 2410414431522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251344140147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242462748 + ... + 1242464559.

It is an arithmetic number, because the mean of its divisors is an integer number (283281713112).

Almost surely, 2^{2251344140142} is an apocalyptic number.

2251344140142 is an abundant number, since it is smaller than the sum of its proper divisors (2281163269650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251344140142 is a wasteful number, since it uses less digits than its factorization.

2251344140142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484927463.

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 2251344140142 its reverse (2410414431522), we get a palindrome (4661758571664).

The spelling of 2251344140142 in words is "two trillion, two hundred fifty-one billion, three hundred forty-four million, one hundred forty thousand, one hundred forty-two".