245345287 has 12 divisors (see below), whose sum is σ = 270138960. Its totient is φ = 222659360.

The previous prime is 245345273. The next prime is 245345291. The reversal of 245345287 is 782543542.

It is not a de Polignac number, because 245345287 - 2⁷ = 245345159 is a prime.

It is a super-2 number, since 2×245345287² = 120388619706224738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245345297) 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, 88539 + ... + 91267.

It is an arithmetic number, because the mean of its divisors is an integer number (22511580).

Almost surely, 2^245345287 is an apocalyptic number.

245345287 is a deficient number, since it is larger than the sum of its proper divisors (24793673).

245345287 is a wasteful number, since it uses less digits than its factorization.

245345287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494 (or 3483 counting only the distinct ones).

The product of its digits is 268800, while the sum is 40.

The square root of 245345287 is about 15663.5017476936. The cubic root of 245345287 is about 626.0262920769.

The spelling of 245345287 in words is "two hundred forty-five million, three hundred forty-five thousand, two hundred eighty-seven".