245309148 has 60 divisors (see below), whose sum is σ = 732905712. Its totient is φ = 70087680.

The previous prime is 245309137. The next prime is 245309153. The reversal of 245309148 is 841903542.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51813 + ... + 56348.

Almost surely, 2^245309148 is an apocalyptic number.

245309148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

245309148 is an abundant number, since it is smaller than the sum of its proper divisors (487596564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245309148 is a wasteful number, since it uses less digits than its factorization.

245309148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108184 (or 108173 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 245309148 is about 15662.3480998221. The cubic root of 245309148 is about 625.9955529835.

The spelling of 245309148 in words is "two hundred forty-five million, three hundred nine thousand, one hundred forty-eight".