61200401 has 4 divisors (see below), whose sum is σ = 63861312. Its totient is φ = 58539492.

The previous prime is 61200389. The next prime is 61200407. The reversal of 61200401 is 10400216.

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.

It is a cyclic number.

It is not a de Polignac number, because 61200401 - 2¹⁰ = 61199377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61200407) 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, 1330421 + ... + 1330466.

It is an arithmetic number, because the mean of its divisors is an integer number (15965328).

Almost surely, 2^61200401 is an apocalyptic number.

It is an amenable number.

61200401 is a deficient number, since it is larger than the sum of its proper divisors (2660911).

61200401 is a wasteful number, since it uses less digits than its factorization.

61200401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660910.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 61200401 is about 7823.0685156146. The cubic root of 61200401 is about 394.0803279577.

Adding to 61200401 its reverse (10400216), we get a palindrome (71600617).

The spelling of 61200401 in words is "sixty-one million, two hundred thousand, four hundred one".