189225515 has 4 divisors (see below), whose sum is σ = 227070624. Its totient is φ = 151380408.

The previous prime is 189225473. The next prime is 189225557. The reversal of 189225515 is 515522981.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 515522981 = 16529 ⋅31189.

It is an interprime number because it is at equal distance from previous prime (189225473) and next prime (189225557).

It is a cyclic number.

It is not a de Polignac number, because 189225515 - 2¹⁴ = 189209131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18922547 + ... + 18922556.

It is an arithmetic number, because the mean of its divisors is an integer number (56767656).

Almost surely, 2^189225515 is an apocalyptic number.

189225515 is a deficient number, since it is larger than the sum of its proper divisors (37845109).

189225515 is an equidigital number, since it uses as much as digits as its factorization.

189225515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37845108.

The product of its digits is 36000, while the sum is 38.

The square root of 189225515 is about 13755.9265409495. The cubic root of 189225515 is about 574.1075152598.

The spelling of 189225515 in words is "one hundred eighty-nine million, two hundred twenty-five thousand, five hundred fifteen".