145515245502212 has 24 divisors (see below), whose sum is σ = 265762211210496. Its totient is φ = 69584107047488.

The previous prime is 145515245502191. The next prime is 145515245502223. The reversal of 145515245502212 is 212205542515541.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114601553 + ... + 115864344.

It is an arithmetic number, because the mean of its divisors is an integer number (11073425467104).

Almost surely, 2^{145515245502212} is an apocalyptic number.

It is an amenable number.

145515245502212 is a deficient number, since it is larger than the sum of its proper divisors (120246965708284).

145515245502212 is a wasteful number, since it uses less digits than its factorization.

145515245502212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230472787 (or 230472785 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 44.

The spelling of 145515245502212 in words is "one hundred forty-five trillion, five hundred fifteen billion, two hundred forty-five million, five hundred two thousand, two hundred twelve".