151669081 has 8 divisors (see below), whose sum is σ = 157603328. Its totient is φ = 145800000.

The previous prime is 151669051. The next prime is 151669097. The reversal of 151669081 is 180966151.

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

It is a 5-Lehmer number, since φ(151669081) divides (151669081-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 151669081 - 2¹³ = 151660889 is a prime.

It is a super-2 number, since 2×151669081² = 46007020262769122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151669081.

It is not an unprimeable number, because it can be changed into a prime (151669051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11520 + ... + 20881.

It is an arithmetic number, because the mean of its divisors is an integer number (19700416).

Almost surely, 2^151669081 is an apocalyptic number.

It is an amenable number.

151669081 is a deficient number, since it is larger than the sum of its proper divisors (5934247).

151669081 is a wasteful number, since it uses less digits than its factorization.

151669081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32583.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 151669081 is about 12315.4001559024. The cubic root of 151669081 is about 533.2927567654.

The spelling of 151669081 in words is "one hundred fifty-one million, six hundred sixty-nine thousand, eighty-one".