61901383 has 2 divisors, whose sum is σ = 61901384. Its totient is φ = 61901382.

The previous prime is 61901377. The next prime is 61901387. The reversal of 61901383 is 38310916.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61901383 - 2⁵ = 61901351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61901387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30950691 + 30950692.

It is an arithmetic number, because the mean of its divisors is an integer number (30950692).

Almost surely, 2^61901383 is an apocalyptic number.

61901383 is a deficient number, since it is larger than the sum of its proper divisors (1).

61901383 is an equidigital number, since it uses as much as digits as its factorization.

61901383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 61901383 is about 7867.7431961141. The cubic root of 61901383 is about 395.5792026214.

The spelling of 61901383 in words is "sixty-one million, nine hundred one thousand, three hundred eighty-three".