61369213 has 4 divisors (see below), whose sum is σ = 62796448. Its totient is φ = 59941980.

The previous prime is 61369211. The next prime is 61369229. The reversal of 61369213 is 31296316.

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 61369213 - 2¹ = 61369211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61369211) 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, 713553 + ... + 713638.

It is an arithmetic number, because the mean of its divisors is an integer number (15699112).

Almost surely, 2^61369213 is an apocalyptic number.

It is an amenable number.

61369213 is a deficient number, since it is larger than the sum of its proper divisors (1427235).

61369213 is a wasteful number, since it uses less digits than its factorization.

61369213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427234.

The product of its digits is 5832, while the sum is 31.

The square root of 61369213 is about 7833.8504581081. The cubic root of 61369213 is about 394.4423322038.

The spelling of 61369213 in words is "sixty-one million, three hundred sixty-nine thousand, two hundred thirteen".