151191996 has 12 divisors (see below), whose sum is σ = 352781352. Its totient is φ = 50397328.

The previous prime is 151191923. The next prime is 151192003. The reversal of 151191996 is 699191151.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6299655 + ... + 6299678.

It is an arithmetic number, because the mean of its divisors is an integer number (29398446).

Almost surely, 2^151191996 is an apocalyptic number.

It is an amenable number.

151191996 is an abundant number, since it is smaller than the sum of its proper divisors (201589356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151191996 is a wasteful number, since it uses less digits than its factorization.

151191996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12599340 (or 12599338 counting only the distinct ones).

The product of its digits is 21870, while the sum is 42.

The square root of 151191996 is about 12296.0154521699. The cubic root of 151191996 is about 532.7330003722.

The spelling of 151191996 in words is "one hundred fifty-one million, one hundred ninety-one thousand, nine hundred ninety-six".