145693069 has 2 divisors, whose sum is σ = 145693070. Its totient is φ = 145693068.

The previous prime is 145693039. The next prime is 145693099. The reversal of 145693069 is 960396541.

145693069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (145693039) and next prime (145693099).

It can be written as a sum of positive squares in only one way, i.e., 78535044 + 67158025 = 8862^2 + 8195^2 .

It is a cyclic number.

It is not a de Polignac number, because 145693069 - 2¹⁹ = 145168781 is a prime.

It is a super-2 number, since 2×145693069² = 42452940709277522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145693039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72846534 + 72846535.

It is an arithmetic number, because the mean of its divisors is an integer number (72846535).

Almost surely, 2^145693069 is an apocalyptic number.

It is an amenable number.

145693069 is a deficient number, since it is larger than the sum of its proper divisors (1).

145693069 is an equidigital number, since it uses as much as digits as its factorization.

145693069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 145693069 is about 12070.3383962505. The cubic root of 145693069 is about 526.1944913928.

The spelling of 145693069 in words is "one hundred forty-five million, six hundred ninety-three thousand, sixty-nine".