61622151 has 8 divisors (see below), whose sum is σ = 82397040. Its totient is φ = 40964352.

The previous prime is 61622117. The next prime is 61622153. The reversal of 61622151 is 15122616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61622151 - 2⁷ = 61622023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61622153) 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, 28036 + ... + 30153.

It is an arithmetic number, because the mean of its divisors is an integer number (10299630).

Almost surely, 2^61622151 is an apocalyptic number.

61622151 is a deficient number, since it is larger than the sum of its proper divisors (20774889).

61622151 is a wasteful number, since it uses less digits than its factorization.

61622151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58545.

The product of its digits is 720, while the sum is 24.

The square root of 61622151 is about 7849.9777706692. The cubic root of 61622151 is about 394.9834976816.

Adding to 61622151 its reverse (15122616), we get a palindrome (76744767).

The spelling of 61622151 in words is "sixty-one million, six hundred twenty-two thousand, one hundred fifty-one".