61969153 has 8 divisors (see below), whose sum is σ = 64843200. Its totient is φ = 59110128.

The previous prime is 61969147. The next prime is 61969181. The reversal of 61969153 is 35196916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61969153 - 2¹³ = 61960961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61969123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5163 + ... + 12271.

It is an arithmetic number, because the mean of its divisors is an integer number (8105400).

Almost surely, 2^61969153 is an apocalyptic number.

It is an amenable number.

61969153 is a deficient number, since it is larger than the sum of its proper divisors (2874047).

61969153 is a wasteful number, since it uses less digits than its factorization.

61969153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7511.

The product of its digits is 43740, while the sum is 40.

The square root of 61969153 is about 7872.0488438525. The cubic root of 61969153 is about 395.7235107875.

The spelling of 61969153 in words is "sixty-one million, nine hundred sixty-nine thousand, one hundred fifty-three".