145977567 has 8 divisors (see below), whose sum is σ = 194880000. Its totient is φ = 97196760.

The previous prime is 145977563. The next prime is 145977577. The reversal of 145977567 is 765779541.

It is a happy number.

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

It is not a de Polignac number, because 145977567 - 2² = 145977563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145977563) 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, 27567 + ... + 32432.

It is an arithmetic number, because the mean of its divisors is an integer number (24360000).

Almost surely, 2^145977567 is an apocalyptic number.

145977567 is a deficient number, since it is larger than the sum of its proper divisors (48902433).

145977567 is an equidigital number, since it uses as much as digits as its factorization.

145977567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60813.

The product of its digits is 1852200, while the sum is 51.

The square root of 145977567 is about 12082.1176537890. The cubic root of 145977567 is about 526.5367724758.

The spelling of 145977567 in words is "one hundred forty-five million, nine hundred seventy-seven thousand, five hundred sixty-seven".