61097601 has 4 divisors (see below), whose sum is σ = 81463472. Its totient is φ = 40731732.

The previous prime is 61097587. The next prime is 61097611. The reversal of 61097601 is 10679016.

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 not a de Polignac number, because 61097601 - 2⁶ = 61097537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61097611) 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, 10182931 + ... + 10182936.

It is an arithmetic number, because the mean of its divisors is an integer number (20365868).

Almost surely, 2^61097601 is an apocalyptic number.

It is an amenable number.

61097601 is a deficient number, since it is larger than the sum of its proper divisors (20365871).

61097601 is a wasteful number, since it uses less digits than its factorization.

61097601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20365870.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 61097601 is about 7816.4954423322. The cubic root of 61097601 is about 393.8595551034.

The spelling of 61097601 in words is "sixty-one million, ninety-seven thousand, six hundred one".