145237287 has 8 divisors (see below), whose sum is σ = 208545904. Its totient is φ = 89376768.

The previous prime is 145237277. The next prime is 145237297. The reversal of 145237287 is 782732541.

It is an interprime number because it is at equal distance from previous prime (145237277) and next prime (145237297).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145237287 - 2⁴ = 145237271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 3724033 = 145237287 / (1 + 4 + 5 + 2 + 3 + 7 + 2 + 8 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145237207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1861978 + ... + 1862055.

It is an arithmetic number, because the mean of its divisors is an integer number (26068238).

Almost surely, 2^145237287 is an apocalyptic number.

145237287 is a deficient number, since it is larger than the sum of its proper divisors (63308617).

145237287 is a wasteful number, since it uses less digits than its factorization.

145237287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724049.

The product of its digits is 94080, while the sum is 39.

The square root of 145237287 is about 12051.4433575402. The cubic root of 145237287 is about 525.6452076433.

The spelling of 145237287 in words is "one hundred forty-five million, two hundred thirty-seven thousand, two hundred eighty-seven".