145807031 has 2 divisors, whose sum is σ = 145807032. Its totient is φ = 145807030.

The previous prime is 145807001. The next prime is 145807037. The reversal of 145807031 is 130708541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145807031 - 2¹⁸ = 145544887 is a prime.

It is a super-2 number, since 2×145807031² = 42519380578069922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 145806985 and 145807003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145807037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72903515 + 72903516.

It is an arithmetic number, because the mean of its divisors is an integer number (72903516).

Almost surely, 2^145807031 is an apocalyptic number.

145807031 is a deficient number, since it is larger than the sum of its proper divisors (1).

145807031 is an equidigital number, since it uses as much as digits as its factorization.

145807031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 145807031 is about 12075.0582193213. The cubic root of 145807031 is about 526.3316531410.

The spelling of 145807031 in words is "one hundred forty-five million, eight hundred seven thousand, thirty-one".