64629145 has 8 divisors (see below), whose sum is σ = 88634304. Its totient is φ = 44317104.

The previous prime is 64629137. The next prime is 64629151. The reversal of 64629145 is 54192646.

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 64629145 - 2³ = 64629137 is a prime.

It is a Duffinian 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, 923239 + ... + 923308.

It is an arithmetic number, because the mean of its divisors is an integer number (11079288).

Almost surely, 2^64629145 is an apocalyptic number.

It is an amenable number.

64629145 is a deficient number, since it is larger than the sum of its proper divisors (24005159).

64629145 is a wasteful number, since it uses less digits than its factorization.

64629145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846559.

The product of its digits is 51840, while the sum is 37.

The square root of 64629145 is about 8039.2253980094. The cubic root of 64629145 is about 401.3064470945.

It can be divided in two parts, 646 and 29145, that added together give a cube (29791 = 31³).

The spelling of 64629145 in words is "sixty-four million, six hundred twenty-nine thousand, one hundred forty-five".