61072201 has 4 divisors (see below), whose sum is σ = 63042304. Its totient is φ = 59102100.

The previous prime is 61072181. The next prime is 61072217. The reversal of 61072201 is 10227016.

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 61072201 - 2¹³ = 61064009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61072301) 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, 985005 + ... + 985066.

It is an arithmetic number, because the mean of its divisors is an integer number (15760576).

Almost surely, 2^61072201 is an apocalyptic number.

It is an amenable number.

61072201 is a deficient number, since it is larger than the sum of its proper divisors (1970103).

61072201 is a wasteful number, since it uses less digits than its factorization.

61072201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970102.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 61072201 is about 7814.8705043654. The cubic root of 61072201 is about 393.8049680210.

Adding to 61072201 its reverse (10227016), we get a palindrome (71299217).

The spelling of 61072201 in words is "sixty-one million, seventy-two thousand, two hundred one".