61299153 has 8 divisors (see below), whose sum is σ = 90813600. Its totient is φ = 40866084.

The previous prime is 61299151. The next prime is 61299169. The reversal of 61299153 is 35199216.

It is not a de Polignac number, because 61299153 - 2¹ = 61299151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61299151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135143 + ... + 1135196.

It is an arithmetic number, because the mean of its divisors is an integer number (11351700).

Almost surely, 2^61299153 is an apocalyptic number.

It is an amenable number.

61299153 is a deficient number, since it is larger than the sum of its proper divisors (29514447).

61299153 is a wasteful number, since it uses less digits than its factorization.

61299153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270348 (or 2270342 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 61299153 is about 7829.3775614668. The cubic root of 61299153 is about 394.2921746511.

It can be divided in two parts, 612 and 99153, that multiplied together give a triangular number (60681636 = T₁₁₀₁₆).

The spelling of 61299153 in words is "sixty-one million, two hundred ninety-nine thousand, one hundred fifty-three".