145120440023407 has 16 divisors (see below), whose sum is σ = 149899717900800. Its totient is φ = 140429393881920.

The previous prime is 145120440023357. The next prime is 145120440023467. The reversal of 145120440023407 is 704320044021541.

It is a cyclic number.

It is not a de Polignac number, because 145120440023407 - 2¹⁵ = 145120439990639 is a prime.

It is a super-2 number, since 2×145120440023407² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145120440023467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45488998 + ... + 48574579.

It is an arithmetic number, because the mean of its divisors is an integer number (9368732368800).

Almost surely, 2^{145120440023407} is an apocalyptic number.

145120440023407 is a deficient number, since it is larger than the sum of its proper divisors (4779277877393).

145120440023407 is an equidigital number, since it uses as much as digits as its factorization.

145120440023407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94064046.

The product of its (nonzero) digits is 107520, while the sum is 37.

Adding to 145120440023407 its reverse (704320044021541), we get a palindrome (849440484044948).

The spelling of 145120440023407 in words is "one hundred forty-five trillion, one hundred twenty billion, four hundred forty million, twenty-three thousand, four hundred seven".