425149619 has 2 divisors, whose sum is σ = 425149620. Its totient is φ = 425149618.

The previous prime is 425149603. The next prime is 425149631. The reversal of 425149619 is 916941524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425149619 - 2⁴ = 425149603 is a prime.

It is a super-2 number, since 2×425149619² = 361504397071690322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (425149679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212574809 + 212574810.

It is an arithmetic number, because the mean of its divisors is an integer number (212574810).

Almost surely, 2^425149619 is an apocalyptic number.

425149619 is a deficient number, since it is larger than the sum of its proper divisors (1).

425149619 is an equidigital number, since it uses as much as digits as its factorization.

425149619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 425149619 is about 20619.1566025383. The cubic root of 425149619 is about 751.9355157048.

The spelling of 425149619 in words is "four hundred twenty-five million, one hundred forty-nine thousand, six hundred nineteen".