70520151 has 24 divisors (see below), whose sum is σ = 102362880. Its totient is φ = 43164576.

The previous prime is 70520147. The next prime is 70520159. The reversal of 70520151 is 15102507.

It is not a de Polignac number, because 70520151 - 2² = 70520147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70520159) 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, 185880 + ... + 186258.

It is an arithmetic number, because the mean of its divisors is an integer number (4265120).

Almost surely, 2^70520151 is an apocalyptic number.

70520151 is a deficient number, since it is larger than the sum of its proper divisors (31842729).

70520151 is a wasteful number, since it uses less digits than its factorization.

70520151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 70520151 is about 8397.6277007260. The cubic root of 70520151 is about 413.1468170064.

Adding to 70520151 its reverse (15102507), we get a palindrome (85622658).

The spelling of 70520151 in words is "seventy million, five hundred twenty thousand, one hundred fifty-one".