145203046087781 has 8 divisors (see below), whose sum is σ = 161088125090400. Its totient is φ = 129765434099440.

The previous prime is 145203046087763. The next prime is 145203046087823. The reversal of 145203046087781 is 187780640302541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145203046087781 - 2³⁰ = 145201972345957 is a prime.

It is a super-2 number, since 2×145203046087781² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145203046087681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111866752886 + ... + 111866754183.

It is an arithmetic number, because the mean of its divisors is an integer number (20136015636300).

Almost surely, 2^{145203046087781} is an apocalyptic number.

145203046087781 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145203046087781 is a deficient number, since it is larger than the sum of its proper divisors (15885079002619).

145203046087781 is a wasteful number, since it uses less digits than its factorization.

145203046087781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223733507139.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 145203046087781 in words is "one hundred forty-five trillion, two hundred three billion, forty-six million, eighty-seven thousand, seven hundred eighty-one".