145552154431 has 2 divisors, whose sum is σ = 145552154432. Its totient is φ = 145552154430.

The previous prime is 145552154413. The next prime is 145552154437. The reversal of 145552154431 is 134451255541.

Together with previous prime (145552154413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145552154431 - 2⁵ = 145552154399 is a prime.

It is a super-2 number, since 2×145552154431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145552154437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72776077215 + 72776077216.

It is an arithmetic number, because the mean of its divisors is an integer number (72776077216).

Almost surely, 2^145552154431 is an apocalyptic number.

145552154431 is a deficient number, since it is larger than the sum of its proper divisors (1).

145552154431 is an equidigital number, since it uses as much as digits as its factorization.

145552154431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240000, while the sum is 40.

The spelling of 145552154431 in words is "one hundred forty-five billion, five hundred fifty-two million, one hundred fifty-four thousand, four hundred thirty-one".