70155061 has 4 divisors (see below), whose sum is σ = 70332172. Its totient is φ = 69977952.

The previous prime is 70155023. The next prime is 70155091. The reversal of 70155061 is 16055107.

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 31640625 + 38514436 = 5625^2 + 6206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70155061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70155091) 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, 87960 + ... + 88753.

It is an arithmetic number, because the mean of its divisors is an integer number (17583043).

Almost surely, 2^70155061 is an apocalyptic number.

It is an amenable number.

70155061 is a deficient number, since it is larger than the sum of its proper divisors (177111).

70155061 is a wasteful number, since it uses less digits than its factorization.

70155061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177110.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 70155061 is about 8375.8618064054. The cubic root of 70155061 is about 412.4326153779.

The spelling of 70155061 in words is "seventy million, one hundred fifty-five thousand, sixty-one".