69628145 has 16 divisors (see below), whose sum is σ = 85494528. Its totient is φ = 54421440.

The previous prime is 69628133. The next prime is 69628183. The reversal of 69628145 is 54182696.

It is a happy number.

It is not a de Polignac number, because 69628145 - 2⁴ = 69628129 is a prime.

It is a super-2 number, since 2×69628145² = 9696157152282050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50252 + ... + 51618.

It is an arithmetic number, because the mean of its divisors is an integer number (5343408).

Almost surely, 2^69628145 is an apocalyptic number.

It is an amenable number.

69628145 is a deficient number, since it is larger than the sum of its proper divisors (15866383).

69628145 is a wasteful number, since it uses less digits than its factorization.

69628145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600.

The product of its digits is 103680, while the sum is 41.

The square root of 69628145 is about 8344.3480871785. The cubic root of 69628145 is about 411.3974622309.

The spelling of 69628145 in words is "sixty-nine million, six hundred twenty-eight thousand, one hundred forty-five".