61161154 has 8 divisors (see below), whose sum is σ = 92041488. Its totient is φ = 30480660.

The previous prime is 61161143. The next prime is 61161157. The reversal of 61161154 is 45116116.

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

It is a super-2 number, since 2×61161154² = 7481373517223432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61161157) 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, 49192 + ... + 50419.

It is an arithmetic number, because the mean of its divisors is an integer number (11505186).

Almost surely, 2^61161154 is an apocalyptic number.

61161154 is a deficient number, since it is larger than the sum of its proper divisors (30880334).

61161154 is a wasteful number, since it uses less digits than its factorization.

61161154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99920.

The product of its digits is 720, while the sum is 25.

The square root of 61161154 is about 7820.5596986405. The cubic root of 61161154 is about 393.9960704599.

The spelling of 61161154 in words is "sixty-one million, one hundred sixty-one thousand, one hundred fifty-four".