61087151 has 4 divisors (see below), whose sum is σ = 61428600. Its totient is φ = 60745704.

The previous prime is 61087141. The next prime is 61087153. The reversal of 61087151 is 15178016.

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

It is a cyclic number.

It is not a de Polignac number, because 61087151 - 2¹⁴ = 61070767 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 (61087153) 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, 170456 + ... + 170813.

It is an arithmetic number, because the mean of its divisors is an integer number (15357150).

Almost surely, 2^61087151 is an apocalyptic number.

61087151 is a deficient number, since it is larger than the sum of its proper divisors (341449).

61087151 is a wasteful number, since it uses less digits than its factorization.

61087151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341448.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 61087151 is about 7815.8269556074. The cubic root of 61087151 is about 393.8370988642.

The spelling of 61087151 in words is "sixty-one million, eighty-seven thousand, one hundred fifty-one".