145720187460 has 60 divisors (see below), whose sum is σ = 457129630188. Its totient is φ = 38858716224.

The previous prime is 145720187443. The next prime is 145720187527. The reversal of 145720187460 is 64781027541.

145720187460 is a `hidden beast` number, since 1 + 4 + 5 + 7 + 2 + 0 + 187 + 460 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34963016256 + 110757171204 = 186984^2 + 332802^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 44973747 + ... + 44976986.

Almost surely, 2^145720187460 is an apocalyptic number.

145720187460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145720187460 is an abundant number, since it is smaller than the sum of its proper divisors (311409442728).

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

145720187460 is a wasteful number, since it uses less digits than its factorization.

145720187460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89950754 (or 89950743 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 145720187460 in words is "one hundred forty-five billion, seven hundred twenty million, one hundred eighty-seven thousand, four hundred sixty".