60138761 has 4 divisors (see below), whose sum is σ = 60177792. Its totient is φ = 60099732.

The previous prime is 60138647. The next prime is 60138763. The reversal of 60138761 is 16783106.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16783106 = 2 ⋅8391553.

It is a cyclic number.

It is not a de Polignac number, because 60138761 - 2²² = 55944457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60138763) 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, 17105 + ... + 20318.

It is an arithmetic number, because the mean of its divisors is an integer number (15044448).

Almost surely, 2^60138761 is an apocalyptic number.

It is an amenable number.

60138761 is a deficient number, since it is larger than the sum of its proper divisors (39031).

60138761 is a wasteful number, since it uses less digits than its factorization.

60138761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39030.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 60138761 is about 7754.9185037626. The cubic root of 60138761 is about 391.7883267348.

The spelling of 60138761 in words is "sixty million, one hundred thirty-eight thousand, seven hundred sixty-one".