61002153 has 20 divisors (see below), whose sum is σ = 91627008. Its totient is φ = 40444920.

The previous prime is 61002143. The next prime is 61002157. The reversal of 61002153 is 35120016.

61002153 is a `hidden beast` number, since 610 + 0 + 2 + 1 + 53 = 666.

61002153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-61002153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61002157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13500 + ... + 17442.

Almost surely, 2^61002153 is an apocalyptic number.

It is an amenable number.

61002153 is a deficient number, since it is larger than the sum of its proper divisors (30624855).

61002153 is a wasteful number, since it uses less digits than its factorization.

61002153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4146 (or 4137 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 61002153 is about 7810.3875063917. The cubic root of 61002153 is about 393.6543495554.

Adding to 61002153 its reverse (35120016), we get a palindrome (96122169).

The spelling of 61002153 in words is "sixty-one million, two thousand, one hundred fifty-three".