145662031 has 2 divisors, whose sum is σ = 145662032. Its totient is φ = 145662030.

The previous prime is 145661993. The next prime is 145662061. The reversal of 145662031 is 130266541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145662031 - 2⁷ = 145661903 is a prime.

It is a super-2 number, since 2×145662031² = 42434854550089922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145662061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72831015 + 72831016.

It is an arithmetic number, because the mean of its divisors is an integer number (72831016).

Almost surely, 2^145662031 is an apocalyptic number.

145662031 is a deficient number, since it is larger than the sum of its proper divisors (1).

145662031 is an equidigital number, since it uses as much as digits as its factorization.

145662031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 145662031 is about 12069.0526140207. The cubic root of 145662031 is about 526.1571224577.

The spelling of 145662031 in words is "one hundred forty-five million, six hundred sixty-two thousand, thirty-one".