61401043 has 8 divisors (see below), whose sum is σ = 67286016. Its totient is φ = 55566600.

The previous prime is 61401037. The next prime is 61401061. The reversal of 61401043 is 34010416.

It is a happy number.

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-61401043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61401043.

It is not an unprimeable number, because it can be changed into a prime (61401143) 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, 10063 + ... + 14968.

It is an arithmetic number, because the mean of its divisors is an integer number (8410752).

Almost surely, 2^61401043 is an apocalyptic number.

61401043 is a deficient number, since it is larger than the sum of its proper divisors (5884973).

61401043 is a wasteful number, since it uses less digits than its factorization.

61401043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25265.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 61401043 is about 7835.8817627629. The cubic root of 61401043 is about 394.5105147599.

Adding to 61401043 its reverse (34010416), we get a palindrome (95411459).

It can be divided in two parts, 61 and 401043, that added together give a palindrome (401104).

The spelling of 61401043 in words is "sixty-one million, four hundred one thousand, forty-three".