145693087 has 12 divisors (see below), whose sum is σ = 154612416. Its totient is φ = 137142720.

The previous prime is 145693069. The next prime is 145693099. The reversal of 145693087 is 780396541.

It is not a de Polignac number, because 145693087 - 2⁷ = 145692959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145693487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40723 + ... + 44155.

It is an arithmetic number, because the mean of its divisors is an integer number (12884368).

Almost surely, 2^145693087 is an apocalyptic number.

145693087 is a deficient number, since it is larger than the sum of its proper divisors (8919329).

145693087 is an equidigital number, since it uses as much as digits as its factorization.

145693087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538 (or 3501 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 145693087 is about 12070.3391418800. The cubic root of 145693087 is about 526.1945130628.

The spelling of 145693087 in words is "one hundred forty-five million, six hundred ninety-three thousand, eighty-seven".