145801577 has 8 divisors (see below), whose sum is σ = 152314560. Its totient is φ = 139303120.

The previous prime is 145801549. The next prime is 145801583. The reversal of 145801577 is 775108541.

It is a happy number.

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 145801577 - 2⁸ = 145801321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145801577.

It is not an unprimeable number, because it can be changed into a prime (145801177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20327 + ... + 26547.

It is an arithmetic number, because the mean of its divisors is an integer number (19039320).

Almost surely, 2^145801577 is an apocalyptic number.

It is an amenable number.

145801577 is a deficient number, since it is larger than the sum of its proper divisors (6512983).

145801577 is a wasteful number, since it uses less digits than its factorization.

145801577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7263.

The product of its (nonzero) digits is 39200, while the sum is 38.

The square root of 145801577 is about 12074.8323797890. The cubic root of 145801577 is about 526.3250904748.

The spelling of 145801577 in words is "one hundred forty-five million, eight hundred one thousand, five hundred seventy-seven".