61995213 has 40 divisors (see below), whose sum is σ = 107889408. Its totient is φ = 34740576.

The previous prime is 61995203. The next prime is 61995229. The reversal of 61995213 is 31259916.

It is not a de Polignac number, because 61995213 - 2¹² = 61991117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61995203) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 29020 + ... + 31082.

Almost surely, 2^61995213 is an apocalyptic number.

61995213 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

61995213 is a deficient number, since it is larger than the sum of its proper divisors (45894195).

61995213 is a wasteful number, since it uses less digits than its factorization.

61995213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135 (or 2126 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 61995213 is about 7873.7038933402. The cubic root of 61995213 is about 395.7789744547.

The spelling of 61995213 in words is "sixty-one million, nine hundred ninety-five thousand, two hundred thirteen".