59145221 has 4 divisors (see below), whose sum is σ = 59499552. Its totient is φ = 58790892.

The previous prime is 59145211. The next prime is 59145263. The reversal of 59145221 is 12254195.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-59145221 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 (59145211) 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, 176915 + ... + 177248.

It is an arithmetic number, because the mean of its divisors is an integer number (14874888).

Almost surely, 2^59145221 is an apocalyptic number.

It is an amenable number.

59145221 is a deficient number, since it is larger than the sum of its proper divisors (354331).

59145221 is a wasteful number, since it uses less digits than its factorization.

59145221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354330.

The product of its digits is 3600, while the sum is 29.

The square root of 59145221 is about 7690.5930200473. The cubic root of 59145221 is about 389.6187837479.

The spelling of 59145221 in words is "fifty-nine million, one hundred forty-five thousand, two hundred twenty-one".