61383501 has 12 divisors (see below), whose sum is σ = 91949312. Its totient is φ = 40922172.

The previous prime is 61383499. The next prime is 61383529. The reversal of 61383501 is 10538316.

61383501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61383501 - 2¹ = 61383499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61383001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126061 + ... + 126546.

Almost surely, 2^61383501 is an apocalyptic number.

It is an amenable number.

61383501 is a deficient number, since it is larger than the sum of its proper divisors (30565811).

61383501 is an equidigital number, since it uses as much as digits as its factorization.

61383501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252622 (or 252610 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 61383501 is about 7834.7623448322. The cubic root of 61383501 is about 394.4729412255.

The spelling of 61383501 in words is "sixty-one million, three hundred eighty-three thousand, five hundred one".