70761157 has 4 divisors (see below), whose sum is σ = 74923596. Its totient is φ = 66598720.

The previous prime is 70761151. The next prime is 70761161. The reversal of 70761157 is 75116707.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65383396 + 5377761 = 8086^2 + 2319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70761157 is a prime.

It is a super-3 number, since 3×70761157³ (a number of 25 digits) contains 333 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 (70761151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2081194 + ... + 2081227.

It is an arithmetic number, because the mean of its divisors is an integer number (18730899).

Almost surely, 2^70761157 is an apocalyptic number.

It is an amenable number.

70761157 is a deficient number, since it is larger than the sum of its proper divisors (4162439).

70761157 is a wasteful number, since it uses less digits than its factorization.

70761157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162438.

The product of its (nonzero) digits is 10290, while the sum is 34.

The square root of 70761157 is about 8411.9651092952. The cubic root of 70761157 is about 413.6169315568.

The spelling of 70761157 in words is "seventy million, seven hundred sixty-one thousand, one hundred fifty-seven".