61158238 has 4 divisors (see below), whose sum is σ = 91737360. Its totient is φ = 30579118.

The previous prime is 61158217. The next prime is 61158259. The reversal of 61158238 is 83285116.

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

It is an interprime number because it is at equal distance from previous prime (61158217) and next prime (61158259).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15289558 + ... + 15289561.

It is an arithmetic number, because the mean of its divisors is an integer number (22934340).

Almost surely, 2^61158238 is an apocalyptic number.

61158238 is a deficient number, since it is larger than the sum of its proper divisors (30579122).

61158238 is a wasteful number, since it uses less digits than its factorization.

61158238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30579121.

The product of its digits is 11520, while the sum is 34.

The square root of 61158238 is about 7820.3732647489. The cubic root of 61158238 is about 393.9898088013.

The spelling of 61158238 in words is "sixty-one million, one hundred fifty-eight thousand, two hundred thirty-eight".