61350215 has 8 divisors (see below), whose sum is σ = 74552640. Its totient is φ = 48458592.

The previous prime is 61350169. The next prime is 61350239. The reversal of 61350215 is 51205316.

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 61350215 - 2⁶ = 61350151 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 77264 + ... + 78053.

It is an arithmetic number, because the mean of its divisors is an integer number (9319080).

Almost surely, 2^61350215 is an apocalyptic number.

61350215 is a deficient number, since it is larger than the sum of its proper divisors (13202425).

61350215 is a wasteful number, since it uses less digits than its factorization.

61350215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155401.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 61350215 is about 7832.6378060012. The cubic root of 61350215 is about 394.4016256429.

The spelling of 61350215 in words is "sixty-one million, three hundred fifty thousand, two hundred fifteen".