145140389069 has 8 divisors (see below), whose sum is σ = 156313200792. Its totient is φ = 133968744000.

The previous prime is 145140389059. The next prime is 145140389129. The reversal of 145140389069 is 960983041541.

It can be written as a sum of positive squares in 4 ways, for example, as 3497303044 + 141643086025 = 59138^2 + 376355^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145140389069 - 2¹² = 145140384973 is a prime.

It is a super-2 number, since 2×145140389069² (a number of 23 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 (145140389059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24182 + ... + 539319.

It is an arithmetic number, because the mean of its divisors is an integer number (19539150099).

Almost surely, 2^145140389069 is an apocalyptic number.

It is an amenable number.

145140389069 is a deficient number, since it is larger than the sum of its proper divisors (11172811723).

145140389069 is a wasteful number, since it uses less digits than its factorization.

145140389069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583327.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 145140389069 in words is "one hundred forty-five billion, one hundred forty million, three hundred eighty-nine thousand, sixty-nine".