70245945 has 144 divisors (see below), whose sum is σ = 162664320. Its totient is φ = 27371520.

The previous prime is 70245937. The next prime is 70245947. The reversal of 70245945 is 54954207.

It is not a de Polignac number, because 70245945 - 2³ = 70245937 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70245947) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 724137 + ... + 724233.

Almost surely, 2^70245945 is an apocalyptic number.

It is an amenable number.

70245945 is an abundant number, since it is smaller than the sum of its proper divisors (92418375).

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

70245945 is a wasteful number, since it uses less digits than its factorization.

70245945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 70245945 is about 8381.2854026098. The cubic root of 70245945 is about 412.6106369900.

The spelling of 70245945 in words is "seventy million, two hundred forty-five thousand, nine hundred forty-five".