61940419 has 2 divisors, whose sum is σ = 61940420. Its totient is φ = 61940418.

The previous prime is 61940377. The next prime is 61940453. The reversal of 61940419 is 91404916.

It is an a-pointer prime, because the next prime (61940453) can be obtained adding 61940419 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61940419 - 2¹⁷ = 61809347 is a prime.

It is a super-2 number, since 2×61940419² = 7673231011791122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61943419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30970209 + 30970210.

It is an arithmetic number, because the mean of its divisors is an integer number (30970210).

Almost surely, 2^61940419 is an apocalyptic number.

61940419 is a deficient number, since it is larger than the sum of its proper divisors (1).

61940419 is an equidigital number, since it uses as much as digits as its factorization.

61940419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 61940419 is about 7870.2235673455. The cubic root of 61940419 is about 395.6623380011.

The spelling of 61940419 in words is "sixty-one million, nine hundred forty thousand, four hundred nineteen".