61138027 has 8 divisors (see below), whose sum is σ = 62118000. Its totient is φ = 60165600.

The previous prime is 61137997. The next prime is 61138039. The reversal of 61138027 is 72083116.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61138027 is a prime.

It is a super-3 number, since 3×61138027³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61137986 and 61138004.

It is not an unprimeable number, because it can be changed into a prime (61138087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15724 + ... + 19222.

It is an arithmetic number, because the mean of its divisors is an integer number (7764750).

Almost surely, 2^61138027 is an apocalyptic number.

61138027 is a deficient number, since it is larger than the sum of its proper divisors (979973).

61138027 is a wasteful number, since it uses less digits than its factorization.

61138027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 61138027 is about 7819.0809562250. The cubic root of 61138027 is about 393.9464033359.

The spelling of 61138027 in words is "sixty-one million, one hundred thirty-eight thousand, twenty-seven".