145572419 has 2 divisors, whose sum is σ = 145572420. Its totient is φ = 145572418.

The previous prime is 145572409. The next prime is 145572457. The reversal of 145572419 is 914275541.

It is an a-pointer prime, because the next prime (145572457) can be obtained adding 145572419 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145572419 - 2⁴ = 145572403 is a prime.

It is a super-2 number, since 2×145572419² = 42382658347023122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145572409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72786209 + 72786210.

It is an arithmetic number, because the mean of its divisors is an integer number (72786210).

Almost surely, 2^145572419 is an apocalyptic number.

145572419 is a deficient number, since it is larger than the sum of its proper divisors (1).

145572419 is an equidigital number, since it uses as much as digits as its factorization.

145572419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 38.

The square root of 145572419 is about 12065.3395725110. The cubic root of 145572419 is about 526.0492021712.

The spelling of 145572419 in words is "one hundred forty-five million, five hundred seventy-two thousand, four hundred nineteen".