53640146 has 8 divisors (see below), whose sum is σ = 91954560. Its totient is φ = 22988628.

The previous prime is 53640143. The next prime is 53640157. The reversal of 53640146 is 64104635.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (53640143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1915706 + ... + 1915733.

It is an arithmetic number, because the mean of its divisors is an integer number (11494320).

Almost surely, 2^53640146 is an apocalyptic number.

53640146 is a deficient number, since it is larger than the sum of its proper divisors (38314414).

53640146 is a wasteful number, since it uses less digits than its factorization.

53640146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831448.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 53640146 is about 7323.9433367551. The cubic root of 53640146 is about 377.1348362756.

The spelling of 53640146 in words is "fifty-three million, six hundred forty thousand, one hundred forty-six".