61153601 has 4 divisors (see below), whose sum is σ = 61178304. Its totient is φ = 61128900.

The previous prime is 61153583. The next prime is 61153613. The reversal of 61153601 is 10635116.

It is a happy number.

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 61153601 - 2¹⁴ = 61137217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61153621) 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, 8165 + ... + 13746.

It is an arithmetic number, because the mean of its divisors is an integer number (15294576).

Almost surely, 2^61153601 is an apocalyptic number.

It is an amenable number.

61153601 is a deficient number, since it is larger than the sum of its proper divisors (24703).

61153601 is a wasteful number, since it uses less digits than its factorization.

61153601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24702.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 61153601 is about 7820.0767899043. The cubic root of 61153601 is about 393.9798511517.

Adding to 61153601 its reverse (10635116), we get a palindrome (71788717).

The spelling of 61153601 in words is "sixty-one million, one hundred fifty-three thousand, six hundred one".