61132969 has 8 divisors (see below), whose sum is σ = 64941480. Its totient is φ = 57348096.

The previous prime is 61132949. The next prime is 61132979. The reversal of 61132969 is 96923116.

It can be written as a sum of positive squares in 4 ways, for example, as 105625 + 61027344 = 325^2 + 7812^2 .

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 61132969 - 2¹¹ = 61130921 is a prime.

It is a super-2 number, since 2×61132969² = 7474479797509922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (61132949) 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, 424 + ... + 11065.

It is an arithmetic number, because the mean of its divisors is an integer number (8117685).

Almost surely, 2^61132969 is an apocalyptic number.

It is an amenable number.

61132969 is a deficient number, since it is larger than the sum of its proper divisors (3808511).

61132969 is a wasteful number, since it uses less digits than its factorization.

61132969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11819.

The product of its digits is 17496, while the sum is 37.

The square root of 61132969 is about 7818.7575099884. The cubic root of 61132969 is about 393.9355391980.

The spelling of 61132969 in words is "sixty-one million, one hundred thirty-two thousand, nine hundred sixty-nine".