145697644729 has 72 divisors (see below), whose sum is σ = 193939827840. Its totient is φ = 108783222912.

The previous prime is 145697644711. The next prime is 145697644769. The reversal of 145697644729 is 927446796541.

It is a Cunningham number, because it is equal to 5262³+1.

It is not a de Polignac number, because 145697644729 - 2¹³ = 145697636537 is a prime.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 145697644729 = 1³ + 5262³ = 3753³ + 4528³.

It is not an unprimeable number, because it can be changed into a prime (145697644769) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 43581232 + ... + 43584574.

It is an arithmetic number, because the mean of its divisors is an integer number (2693608720).

Almost surely, 2^145697644729 is an apocalyptic number.

145697644729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

145697644729 is a deficient number, since it is larger than the sum of its proper divisors (48242183111).

145697644729 is a wasteful number, since it uses less digits than its factorization.

145697644729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679 (or 3659 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 64.

The spelling of 145697644729 in words is "one hundred forty-five billion, six hundred ninety-seven million, six hundred forty-four thousand, seven hundred twenty-nine".