61148011 has 8 divisors (see below), whose sum is σ = 61819200. Its totient is φ = 60480840.

The previous prime is 61147991. The next prime is 61148051. The reversal of 61148011 is 11084116.

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 61148011 - 2⁷ = 61147883 is a prime.

It is a super-2 number, since 2×61148011² = 7478158498512242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61148051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36960 + ... + 38578.

It is an arithmetic number, because the mean of its divisors is an integer number (7727400).

Almost surely, 2^61148011 is an apocalyptic number.

61148011 is a deficient number, since it is larger than the sum of its proper divisors (671189).

61148011 is a wasteful number, since it uses less digits than its factorization.

61148011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 61148011 is about 7819.7193683661. The cubic root of 61148011 is about 393.9678463286.

The spelling of 61148011 in words is "sixty-one million, one hundred forty-eight thousand, eleven".