145205506634 has 32 divisors (see below), whose sum is σ = 230582626560. Its totient is φ = 68388710400.

The previous prime is 145205506609. The next prime is 145205506669. The reversal of 145205506634 is 436605502541.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 145205506591 and 145205506600.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17898239 + ... + 17906349.

It is an arithmetic number, because the mean of its divisors is an integer number (7205707080).

Almost surely, 2^145205506634 is an apocalyptic number.

145205506634 is a deficient number, since it is larger than the sum of its proper divisors (85377119926).

145205506634 is a wasteful number, since it uses less digits than its factorization.

145205506634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10766.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 145205506634 in words is "one hundred forty-five billion, two hundred five million, five hundred six thousand, six hundred thirty-four".