145711104021 has 24 divisors (see below), whose sum is σ = 254688318144. Its totient is φ = 78365635200.

The previous prime is 145711104017. The next prime is 145711104031. The reversal of 145711104021 is 120401117541.

145711104021 is a `hidden beast` number, since 145 + 7 + 1 + 110 + 402 + 1 = 666.

It is not a de Polignac number, because 145711104021 - 2² = 145711104017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145711104031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68024655 + ... + 68026796.

It is an arithmetic number, because the mean of its divisors is an integer number (10612013256).

Almost surely, 2^145711104021 is an apocalyptic number.

It is an amenable number.

145711104021 is a deficient number, since it is larger than the sum of its proper divisors (108977214123).

145711104021 is a wasteful number, since it uses less digits than its factorization.

145711104021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136051481 (or 136051478 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The spelling of 145711104021 in words is "one hundred forty-five billion, seven hundred eleven million, one hundred four thousand, twenty-one".