61011019 has 8 divisors (see below), whose sum is σ = 63786240. Its totient is φ = 58246056.

The previous prime is 61010953. The next prime is 61011053. The reversal of 61011019 is 91011016.

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 61011019 - 2¹³ = 61002827 is a prime.

It is a super-2 number, since 2×61011019² = 7444688878836722, which contains 22 as substring.

61011019 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61010987 and 61011005.

It is not an unprimeable number, because it can be changed into a prime (61011089) 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, 11242 + ... + 15760.

It is an arithmetic number, because the mean of its divisors is an integer number (7973280).

Almost surely, 2^61011019 is an apocalyptic number.

61011019 is a deficient number, since it is larger than the sum of its proper divisors (2775221).

61011019 is a wasteful number, since it uses less digits than its factorization.

61011019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5129.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 61011019 is about 7810.9550632429. The cubic root of 61011019 is about 393.6734197588.

The spelling of 61011019 in words is "sixty-one million, eleven thousand, nineteen".