145030212034021 has 8 divisors (see below), whose sum is σ = 146645767802520. Its totient is φ = 143417113387008.

The previous prime is 145030212033881. The next prime is 145030212034027. The reversal of 145030212034021 is 120430212030541.

It can be written as a sum of positive squares in 4 ways, for example, as 10372174183396 + 134658037850625 = 3220586^2 + 11604225^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 145030212034021 - 2¹¹ = 145030212031973 is a prime.

It is a super-2 number, since 2×145030212034021² (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 (145030212034027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614161666 + ... + 614397763.

It is an arithmetic number, because the mean of its divisors is an integer number (18330720975315).

Almost surely, 2^{145030212034021} is an apocalyptic number.

It is an amenable number.

145030212034021 is a deficient number, since it is larger than the sum of its proper divisors (1615555768499).

145030212034021 is a wasteful number, since it uses less digits than its factorization.

145030212034021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228560743.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 145030212034021 its reverse (120430212030541), we get a palindrome (265460424064562).

The spelling of 145030212034021 in words is "one hundred forty-five trillion, thirty billion, two hundred twelve million, thirty-four thousand, twenty-one".