61213095 has 24 divisors (see below), whose sum is σ = 107102736. Its totient is φ = 32339328.

The previous prime is 61213091. The next prime is 61213151. The reversal of 61213095 is 59031216.

61213095 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61213095 - 2² = 61213091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61213091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1542 + ... + 11171.

It is an arithmetic number, because the mean of its divisors is an integer number (4462614).

Almost surely, 2^61213095 is an apocalyptic number.

61213095 is a deficient number, since it is larger than the sum of its proper divisors (45889641).

61213095 is a wasteful number, since it uses less digits than its factorization.

61213095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12831 (or 12828 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 61213095 is about 7823.8797920213. The cubic root of 61213095 is about 394.1075723863.

It can be divided in two parts, 6121 and 3095, that added together give a square (9216 = 96²).

The spelling of 61213095 in words is "sixty-one million, two hundred thirteen thousand, ninety-five".