145259687 has 2 divisors, whose sum is σ = 145259688. Its totient is φ = 145259686.

The previous prime is 145259677. The next prime is 145259729. The reversal of 145259687 is 786952541.

It is a happy number.

145259687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (786952541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145259687 - 2⁴ = 145259671 is a prime.

It is a super-2 number, since 2×145259687² = 42200753334675938, 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 (145259627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72629843 + 72629844.

It is an arithmetic number, because the mean of its divisors is an integer number (72629844).

Almost surely, 2^145259687 is an apocalyptic number.

145259687 is a deficient number, since it is larger than the sum of its proper divisors (1).

145259687 is an equidigital number, since it uses as much as digits as its factorization.

145259687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 47.

The square root of 145259687 is about 12052.3726709723. The cubic root of 145259687 is about 525.6722297385.

The spelling of 145259687 in words is "one hundred forty-five million, two hundred fifty-nine thousand, six hundred eighty-seven".