240157554734381 has 2 divisors, whose sum is σ = 240157554734382. Its totient is φ = 240157554734380.

The previous prime is 240157554734353. The next prime is 240157554734401. The reversal of 240157554734381 is 183437455751042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238812207602500 + 1345347131881 = 15453550^2 + 1159891^2 .

It is a cyclic number.

It is not a de Polignac number, because 240157554734381 - 2³⁴ = 240140374865197 is a prime.

It is a super-2 number, since 2×240157554734381² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 240157554734381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240157554734281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120078777367190 + 120078777367191.

It is an arithmetic number, because the mean of its divisors is an integer number (120078777367191).

Almost surely, 2^{240157554734381} is an apocalyptic number.

It is an amenable number.

240157554734381 is a deficient number, since it is larger than the sum of its proper divisors (1).

240157554734381 is an equidigital number, since it uses as much as digits as its factorization.

240157554734381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448000, while the sum is 59.

The spelling of 240157554734381 in words is "two hundred forty trillion, one hundred fifty-seven billion, five hundred fifty-four million, seven hundred thirty-four thousand, three hundred eighty-one".