145406587 has 2 divisors, whose sum is σ = 145406588. Its totient is φ = 145406586.

The previous prime is 145406561. The next prime is 145406629. The reversal of 145406587 is 785604541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145406587 is a prime.

It is a super-2 number, since 2×145406587² = 42286151085977138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145406557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72703293 + 72703294.

It is an arithmetic number, because the mean of its divisors is an integer number (72703294).

Almost surely, 2^145406587 is an apocalyptic number.

145406587 is a deficient number, since it is larger than the sum of its proper divisors (1).

145406587 is an equidigital number, since it uses as much as digits as its factorization.

145406587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 145406587 is about 12058.4653667040. The cubic root of 145406587 is about 525.8493727933.

The spelling of 145406587 in words is "one hundred forty-five million, four hundred six thousand, five hundred eighty-seven".