151871506 has 16 divisors (see below), whose sum is σ = 241445016. Its totient is φ = 71398656.

The previous prime is 151871483. The next prime is 151871509. The reversal of 151871506 is 605178151.

It can be written as a sum of positive squares in 4 ways, for example, as 140209281 + 11662225 = 11841^2 + 3415^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (151871509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52900 + ... + 55696.

Almost surely, 2^151871506 is an apocalyptic number.

151871506 is a deficient number, since it is larger than the sum of its proper divisors (89573510).

151871506 is a wasteful number, since it uses less digits than its factorization.

151871506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413.

The product of its (nonzero) digits is 8400, while the sum is 34.

The square root of 151871506 is about 12323.6157843386. The cubic root of 151871506 is about 533.5299041902.

The spelling of 151871506 in words is "one hundred fifty-one million, eight hundred seventy-one thousand, five hundred six".