61133290 has 8 divisors (see below), whose sum is σ = 110039940. Its totient is φ = 24453312.

The previous prime is 61133269. The next prime is 61133291. The reversal of 61133290 is 9233116.

It can be written as a sum of positive squares in 2 ways, for example, as 60949249 + 184041 = 7807^2 + 429^2 .

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

It is not an unprimeable number, because it can be changed into a prime (61133291) 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, 3056655 + ... + 3056674.

Almost surely, 2^61133290 is an apocalyptic number.

61133290 is a deficient number, since it is larger than the sum of its proper divisors (48906650).

61133290 is a wasteful number, since it uses less digits than its factorization.

61133290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6113336.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 61133290 is about 7818.7780375197. The cubic root of 61133290 is about 393.9362286955.

The spelling of 61133290 in words is "sixty-one million, one hundred thirty-three thousand, two hundred ninety".