145181320434 has 16 divisors (see below), whose sum is σ = 322625156640. Its totient is φ = 48393773460.

The previous prime is 145181320421. The next prime is 145181320447. The reversal of 145181320434 is 434023181541.

145181320434 is a `hidden beast` number, since 1 + 4 + 518 + 132 + 0 + 4 + 3 + 4 = 666.

145181320434 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145181320421) and next prime (145181320447).

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, 1344271432 + ... + 1344271539.

It is an arithmetic number, because the mean of its divisors is an integer number (20164072290).

Almost surely, 2^145181320434 is an apocalyptic number.

145181320434 is an abundant number, since it is smaller than the sum of its proper divisors (177443836206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145181320434 is a wasteful number, since it uses less digits than its factorization.

145181320434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688542982 (or 2688542976 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 145181320434 in words is "one hundred forty-five billion, one hundred eighty-one million, three hundred twenty thousand, four hundred thirty-four".