145770647 has 8 divisors (see below), whose sum is σ = 160567680. Its totient is φ = 131231160.

The previous prime is 145770623. The next prime is 145770671. The reversal of 145770647 is 746077541.

It is an interprime number because it is at equal distance from previous prime (145770623) and next prime (145770671).

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 145770647 - 2²⁶ = 78661783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145775647) 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, 63197 + ... + 65462.

It is an arithmetic number, because the mean of its divisors is an integer number (20070960).

Almost surely, 2^145770647 is an apocalyptic number.

145770647 is a deficient number, since it is larger than the sum of its proper divisors (14797033).

145770647 is a wasteful number, since it uses less digits than its factorization.

145770647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128773.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 145770647 is about 12073.5515487366. The cubic root of 145770647 is about 526.2878700581.

The spelling of 145770647 in words is "one hundred forty-five million, seven hundred seventy thousand, six hundred forty-seven".