61123437 has 24 divisors (see below), whose sum is σ = 95585280. Its totient is φ = 38598120.

The previous prime is 61123427. The next prime is 61123451. The reversal of 61123437 is 73432116.

61123437 is a `hidden beast` number, since 611 + 2 + 3 + 43 + 7 = 666.

It is not a de Polignac number, because 61123437 - 2⁶ = 61123373 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61123437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61123427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6612 + ... + 12882.

It is an arithmetic number, because the mean of its divisors is an integer number (3982720).

Almost surely, 2^61123437 is an apocalyptic number.

It is an amenable number.

61123437 is a deficient number, since it is larger than the sum of its proper divisors (34461843).

61123437 is a wasteful number, since it uses less digits than its factorization.

61123437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6318 (or 6293 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 61123437 is about 7818.1479264593. The cubic root of 61123437 is about 393.9150636739.

The spelling of 61123437 in words is "sixty-one million, one hundred twenty-three thousand, four hundred thirty-seven".