145734031 has 2 divisors, whose sum is σ = 145734032. Its totient is φ = 145734030.

The previous prime is 145733999. The next prime is 145734067. The reversal of 145734031 is 130437541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145734031 - 2⁵ = 145733999 is a prime.

It is a super-2 number, since 2×145734031² = 42476815583017922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145734091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72867015 + 72867016.

It is an arithmetic number, because the mean of its divisors is an integer number (72867016).

Almost surely, 2^145734031 is an apocalyptic number.

145734031 is a deficient number, since it is larger than the sum of its proper divisors (1).

145734031 is an equidigital number, since it uses as much as digits as its factorization.

145734031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 145734031 is about 12072.0350811286. The cubic root of 145734031 is about 526.2438004396.

The spelling of 145734031 in words is "one hundred forty-five million, seven hundred thirty-four thousand, thirty-one".