130151221 has 4 divisors (see below), whose sum is σ = 131719392. Its totient is φ = 128583052.

The previous prime is 130151209. The next prime is 130151243. The reversal of 130151221 is 122151031.

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 not a de Polignac number, because 130151221 - 2¹³ = 130143029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130151195 and 130151204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130151291) 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, 783961 + ... + 784126.

It is an arithmetic number, because the mean of its divisors is an integer number (32929848).

Almost surely, 2^130151221 is an apocalyptic number.

It is an amenable number.

130151221 is a deficient number, since it is larger than the sum of its proper divisors (1568171).

130151221 is an equidigital number, since it uses as much as digits as its factorization.

130151221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568170.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 130151221 is about 11408.3838031511. The cubic root of 130151221 is about 506.7760501275.

The spelling of 130151221 in words is "one hundred thirty million, one hundred fifty-one thousand, two hundred twenty-one".