145421260756 has 12 divisors (see below), whose sum is σ = 256739306292. Its totient is φ = 72067173248.

The previous prime is 145421260727. The next prime is 145421260781. The reversal of 145421260756 is 657062124541.

It can be written as a sum of positive squares in 2 ways, for example, as 57073210000 + 88348050756 = 238900^2 + 297234^2 .

It is a super-2 number, since 2×145421260756² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160863775 + ... + 160864678.

It is an arithmetic number, because the mean of its divisors is an integer number (21394942191).

Almost surely, 2^145421260756 is an apocalyptic number.

It is an amenable number.

145421260756 is a deficient number, since it is larger than the sum of its proper divisors (111318045536).

145421260756 is a wasteful number, since it uses less digits than its factorization.

145421260756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321728570 (or 321728568 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 145421260756 in words is "one hundred forty-five billion, four hundred twenty-one million, two hundred sixty thousand, seven hundred fifty-six".