61133001 has 4 divisors (see below), whose sum is σ = 81510672. Its totient is φ = 40755332.

The previous prime is 61132979. The next prime is 61133021. The reversal of 61133001 is 10033116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61133001 - 2¹⁴ = 61116617 is a prime.

It is a super-2 number, since 2×61133001² = 7474487622532002, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61133021) 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, 10188831 + ... + 10188836.

It is an arithmetic number, because the mean of its divisors is an integer number (20377668).

Almost surely, 2^61133001 is an apocalyptic number.

It is an amenable number.

61133001 is a deficient number, since it is larger than the sum of its proper divisors (20377671).

61133001 is a wasteful number, since it uses less digits than its factorization.

61133001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20377670.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 61133001 is about 7818.7595563491. The cubic root of 61133001 is about 393.9356079331.

Adding to 61133001 its reverse (10033116), we get a palindrome (71166117).

The spelling of 61133001 in words is "sixty-one million, one hundred thirty-three thousand, one".