151961605 has 8 divisors (see below), whose sum is σ = 182673432. Its totient is φ = 121356288.

The previous prime is 151961573. The next prime is 151961617. The reversal of 151961605 is 506169151.

It can be written as a sum of positive squares in 4 ways, for example, as 52620516 + 99341089 = 7254^2 + 9967^2 .

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 151961605 - 2⁵ = 151961573 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 23452 + ... + 29221.

It is an arithmetic number, because the mean of its divisors is an integer number (22834179).

Almost surely, 2^151961605 is an apocalyptic number.

It is an amenable number.

151961605 is a deficient number, since it is larger than the sum of its proper divisors (30711827).

151961605 is an equidigital number, since it uses as much as digits as its factorization.

151961605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53255.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 151961605 is about 12327.2707847277. The cubic root of 151961605 is about 533.6353903106.

The spelling of 151961605 in words is "one hundred fifty-one million, nine hundred sixty-one thousand, six hundred five".