61132091 has 8 divisors (see below), whose sum is σ = 63879840. Its totient is φ = 58391872.

The previous prime is 61132021. The next prime is 61132129. The reversal of 61132091 is 19023116.

It is a happy number.

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 61132091 - 2¹⁸ = 60869947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61132021) 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, 20525 + ... + 23313.

It is an arithmetic number, because the mean of its divisors is an integer number (7984980).

Almost surely, 2^61132091 is an apocalyptic number.

61132091 is a deficient number, since it is larger than the sum of its proper divisors (2747749).

61132091 is a wasteful number, since it uses less digits than its factorization.

61132091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 61132091 is about 7818.7013627584. The cubic root of 61132091 is about 393.9336532704.

The spelling of 61132091 in words is "sixty-one million, one hundred thirty-two thousand, ninety-one".