61133347 has 8 divisors (see below), whose sum is σ = 66842352. Its totient is φ = 55449600.

The previous prime is 61133321. The next prime is 61133351. The reversal of 61133347 is 74333116.

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 61133347 - 2²³ = 52744739 is a prime.

It is a super-2 number, since 2×61133347² = 7474572230844818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61133447) 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, 1054 + ... + 11107.

It is an arithmetic number, because the mean of its divisors is an integer number (8355294).

Almost surely, 2^61133347 is an apocalyptic number.

61133347 is a deficient number, since it is larger than the sum of its proper divisors (5709005).

61133347 is a wasteful number, since it uses less digits than its factorization.

61133347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12629.

The product of its digits is 4536, while the sum is 28.

The square root of 61133347 is about 7818.7816825897. The cubic root of 61133347 is about 393.9363511294.

The spelling of 61133347 in words is "sixty-one million, one hundred thirty-three thousand, three hundred forty-seven".