145124771651517 has 32 divisors (see below), whose sum is σ = 222185547415552. Its totient is φ = 82537473602304.

The previous prime is 145124771651507. The next prime is 145124771651539. The reversal of 145124771651517 is 715156177421541.

It is not a de Polignac number, because 145124771651517 - 2¹⁹ = 145124771127229 is a prime.

It is a super-2 number, since 2×145124771651517² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145124771651507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16682373 + ... + 23844309.

It is an arithmetic number, because the mean of its divisors is an integer number (6943298356736).

Almost surely, 2^{145124771651517} is an apocalyptic number.

It is an amenable number.

145124771651517 is a deficient number, since it is larger than the sum of its proper divisors (77060775764035).

145124771651517 is a wasteful number, since it uses less digits than its factorization.

145124771651517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7166497.

The product of its digits is 8232000, while the sum is 57.

The spelling of 145124771651517 in words is "one hundred forty-five trillion, one hundred twenty-four billion, seven hundred seventy-one million, six hundred fifty-one thousand, five hundred seventeen".