145887317146 has 16 divisors (see below), whose sum is σ = 220685614560. Its totient is φ = 72328016880.

The previous prime is 145887317099. The next prime is 145887317153. The reversal of 145887317146 is 641713788541.

It is a happy number.

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, 529056 + ... + 756091.

It is an arithmetic number, because the mean of its divisors is an integer number (13792850910).

Almost surely, 2^145887317146 is an apocalyptic number.

145887317146 is a deficient number, since it is larger than the sum of its proper divisors (74798297414).

145887317146 is a wasteful number, since it uses less digits than its factorization.

145887317146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285629.

The product of its digits is 4515840, while the sum is 55.

The spelling of 145887317146 in words is "one hundred forty-five billion, eight hundred eighty-seven million, three hundred seventeen thousand, one hundred forty-six".