61151270 has 8 divisors (see below), whose sum is σ = 110072304. Its totient is φ = 24460504.

The previous prime is 61151263. The next prime is 61151281. The reversal of 61151270 is 7215116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×61151270² = 7478955645225800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3057554 + ... + 3057573.

It is an arithmetic number, because the mean of its divisors is an integer number (13759038).

Almost surely, 2^61151270 is an apocalyptic number.

61151270 is a deficient number, since it is larger than the sum of its proper divisors (48921034).

61151270 is a wasteful number, since it uses less digits than its factorization.

61151270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6115134.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 61151270 is about 7819.9277490268. The cubic root of 61151270 is about 393.9748452938.

Adding to 61151270 its reverse (7215116), we get a palindrome (68366386).

The spelling of 61151270 in words is "sixty-one million, one hundred fifty-one thousand, two hundred seventy".