154535340019 has 2 divisors, whose sum is σ = 154535340020. Its totient is φ = 154535340018.

The previous prime is 154535339999. The next prime is 154535340137. The reversal of 154535340019 is 910043535451.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154535340019 - 2¹⁹ = 154534815731 is a prime.

It is a super-2 number, since 2×154535340019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154535349019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77267670009 + 77267670010.

It is an arithmetic number, because the mean of its divisors is an integer number (77267670010).

Almost surely, 2^154535340019 is an apocalyptic number.

154535340019 is a deficient number, since it is larger than the sum of its proper divisors (1).

154535340019 is an equidigital number, since it uses as much as digits as its factorization.

154535340019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 154535340019 in words is "one hundred fifty-four billion, five hundred thirty-five million, three hundred forty thousand, nineteen".