70540245 has 24 divisors (see below), whose sum is σ = 123242496. Its totient is φ = 37322208.

The previous prime is 70540193. The next prime is 70540247. The reversal of 70540245 is 54204507.

It is not a de Polignac number, because 70540245 - 2⁶ = 70540181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70540247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 457 + ... + 11886.

It is an arithmetic number, because the mean of its divisors is an integer number (5135104).

Almost surely, 2^70540245 is an apocalyptic number.

It is an amenable number.

70540245 is a deficient number, since it is larger than the sum of its proper divisors (52702251).

70540245 is a wasteful number, since it uses less digits than its factorization.

70540245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12481 (or 12478 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 70540245 is about 8398.8240248263. The cubic root of 70540245 is about 413.1860539415.

The spelling of 70540245 in words is "seventy million, five hundred forty thousand, two hundred forty-five".