190120465 has 8 divisors (see below), whose sum is σ = 230708520. Its totient is φ = 150387072.

The previous prime is 190120459. The next prime is 190120493. The reversal of 190120465 is 564021091.

It can be written as a sum of positive squares in 4 ways, for example, as 16908544 + 173211921 = 4112^2 + 13161^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 190120465 - 2³ = 190120457 is a prime.

It is a super-2 number, since 2×190120465² = 72291582423632450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213174 + ... + 214063.

It is an arithmetic number, because the mean of its divisors is an integer number (28838565).

Almost surely, 2^190120465 is an apocalyptic number.

It is an amenable number.

190120465 is a deficient number, since it is larger than the sum of its proper divisors (40588055).

190120465 is an equidigital number, since it uses as much as digits as its factorization.

190120465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427331.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 190120465 is about 13788.4177845031. The cubic root of 190120465 is about 575.0111806270.

It can be divided in two parts, 1901 and 20465, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 190120465 in words is "one hundred ninety million, one hundred twenty thousand, four hundred sixty-five".