152191919 has 8 divisors (see below), whose sum is σ = 174766080. Its totient is φ = 131074200.

The previous prime is 152191909. The next prime is 152191937. The reversal of 152191919 is 919191251.

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 152191919 - 2¹² = 152187823 is a prime.

It is a super-2 number, since 2×152191919² = 46324760417805122, which contains 22 as substring.

It is a Duffinian number.

152191919 is a modest number, since divided by 191919 gives 152 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152191909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363887 + ... + 364304.

It is an arithmetic number, because the mean of its divisors is an integer number (21845760).

Almost surely, 2^152191919 is an apocalyptic number.

152191919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

152191919 is a deficient number, since it is larger than the sum of its proper divisors (22574161).

152191919 is a wasteful number, since it uses less digits than its factorization.

152191919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728221.

The product of its digits is 7290, while the sum is 38.

The square root of 152191919 is about 12336.6088938573. The cubic root of 152191919 is about 533.9048479856.

The spelling of 152191919 in words is "one hundred fifty-two million, one hundred ninety-one thousand, nine hundred nineteen".