61124737 has 4 divisors (see below), whose sum is σ = 61282260. Its totient is φ = 60967216.

The previous prime is 61124699. The next prime is 61124743. The reversal of 61124737 is 73742116.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9054081 + 52070656 = 3009^2 + 7216^2 .

It is a cyclic number.

It is not a de Polignac number, because 61124737 - 2¹¹ = 61122689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61124699 and 61124708.

It is not an unprimeable number, because it can be changed into a prime (61124747) 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, 78178 + ... + 78955.

It is an arithmetic number, because the mean of its divisors is an integer number (15320565).

Almost surely, 2^61124737 is an apocalyptic number.

It is an amenable number.

61124737 is a deficient number, since it is larger than the sum of its proper divisors (157523).

61124737 is a wasteful number, since it uses less digits than its factorization.

61124737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157522.

The product of its digits is 7056, while the sum is 31.

The square root of 61124737 is about 7818.2310659125. The cubic root of 61124737 is about 393.9178563068.

The spelling of 61124737 in words is "sixty-one million, one hundred twenty-four thousand, seven hundred thirty-seven".