61151236 has 6 divisors (see below), whose sum is σ = 107014670. Its totient is φ = 30575616.

The previous prime is 61151221. The next prime is 61151263. The reversal of 61151236 is 63215116.

It can be written as a sum of positive squares in only one way, i.e., 32421636 + 28729600 = 5694^2 + 5360^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61151236.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7643901 + ... + 7643908.

Almost surely, 2^61151236 is an apocalyptic number.

It is an amenable number.

61151236 is a deficient number, since it is larger than the sum of its proper divisors (45863434).

61151236 is a wasteful number, since it uses less digits than its factorization.

61151236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15287813 (or 15287811 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 61151236 is about 7819.9255750934. The cubic root of 61151236 is about 393.9747722774.

The spelling of 61151236 in words is "sixty-one million, one hundred fifty-one thousand, two hundred thirty-six".