154040641507 has 2 divisors, whose sum is σ = 154040641508. Its totient is φ = 154040641506.

The previous prime is 154040641493. The next prime is 154040641561. The reversal of 154040641507 is 705146040451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154040641507 - 2²⁷ = 153906423779 is a prime.

It is not a weakly prime, because it can be changed into another prime (154040641597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77020320753 + 77020320754.

It is an arithmetic number, because the mean of its divisors is an integer number (77020320754).

Almost surely, 2^154040641507 is an apocalyptic number.

154040641507 is a deficient number, since it is larger than the sum of its proper divisors (1).

154040641507 is an equidigital number, since it uses as much as digits as its factorization.

154040641507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 37.

Adding to 154040641507 its reverse (705146040451), we get a palindrome (859186681958).

The spelling of 154040641507 in words is "one hundred fifty-four billion, forty million, six hundred forty-one thousand, five hundred seven".