145885743261 has 12 divisors (see below), whose sum is σ = 210755301120. Its totient is φ = 97242646920.

The previous prime is 145885743239. The next prime is 145885743281. The reversal of 145885743261 is 162347588541.

It is a happy number.

145885743261 is a `hidden beast` number, since 1 + 4 + 5 + 8 + 8 + 574 + 3 + 2 + 61 = 666.

It is not a de Polignac number, because 145885743261 - 2¹³ = 145885735069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145885743198 and 145885743207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145885743281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1145775 + ... + 1266716.

It is an arithmetic number, because the mean of its divisors is an integer number (17562941760).

Almost surely, 2^145885743261 is an apocalyptic number.

It is an amenable number.

145885743261 is a deficient number, since it is larger than the sum of its proper divisors (64869557859).

145885743261 is a wasteful number, since it uses less digits than its factorization.

145885743261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419216 (or 2419213 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The spelling of 145885743261 in words is "one hundred forty-five billion, eight hundred eighty-five million, seven hundred forty-three thousand, two hundred sixty-one".